INVESTIGADORES
CEBALLOS Laura
artículos
NIEVES, E.; CIMINO, R.; KROLEWIECKI, A.; JUAREZ, M.; LANUSSE, C.; ALVAREZ, L.; CEBALLOS, L.
Albendazole metabolites excretion in human saliva as a biomarker to assess treatment compliance in mass drug administration (MDA) anthelmintic programs
Scientific Reports; Año: 2024 vol. 14
CANTON, CANDELA; CANTON, LUCILA; LIFSCHITZ, ADRIAN; PAULA DOMINGUEZ, MARIA; ALVAREZ, LUIS; CEBALLOS, LAURA; MATE, LAURA; LANUSSE, CARLOS; BALLENT, MARIANA
Monepantel-based anthelmintic combinations to optimize parasite control in cattle
INTERNATIONAL JOURNAL FOR PARASITOLOGY; Año: 2023
LARROZA, MARCELA; AGUILAR, MARCELO; SOLER, PAULA; MORA, JULIO; ROA, MARTÍN; CABRERA, RAÚL; MARTINEZ STANZIOLA, JUAN P.; CEBALLOS, LAURA; ALVAREZ, LUIS I.
Triclabendazole resistance in Fasciola hepatica: First report in sheep from the Santa Cruz province, Argentinian Patagonia
Veterinary Parasitology: Regional Studies and Reports; Año: 2023 vol. 45
CEBALLOS, L.; ALVAREZ, L.; LIFSCHITZ, A.; LANUSSE, C.
Ivermectin systemic availability in adult volunteers treated with different oral pharmaceutical formulations
BIOMEDICINE & PHARMACOTHERAPY = BIOMEDECINE & PHARMACOTHERAPIE.; Lugar: Francia; Año: 2023 vol. 160 p. 11 - 439
IGNACIO, ALVAREZ LUIS; VALENTINA, CHIAPPETTA; LUCILA, MORIONES; PAULA, DOMINGUEZ; CANDELA, CANTÓN; CARLOS, LANUSSE; LAURA, CEBALLOS
Feeding Management and Albendazole Pharmacokinetics in Pigs
Animals; Año: 2023 vol. 13
JUAN, CANDELA; RODRIGUEZ, DAIANA; CEBALLOS, LAURA; LANUSSE, CARLOS; GALLO, LOREANA; GONZALEZ VIDAL, NOELIA
Development of ivermectin orally disintegrating tablets using factorial design: In-vitro evaluation and in vivo absorption pattern in rats
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY; Año: 2023 vol. 87
BALLENT, MARIANA; CANTON, CANDELA; DOMINGUEZ, PAULA; MATE, LAURA; CEBALLOS, LAURA; LANUSSE, CARLOS; LIFSCHITZ, ADRIAN
Pharmacokinetics and milk excretion pattern of eprinomectin at different dose rates in dairy cattle
JOURNAL OF VETERINARY PHARMACOLOGY AND THERAPEUTICS; Año: 2022 vol. 45 p. 92 - 98
MATE, LAURA; BALLENT, MARIANA; CANTÓN, CANDELA; LANUSSE, CARLOS; CEBALLOS, LAURA; ALVAREZ L, LUIS IGNACIO; LIRON, JUAN PEDRO
ABC-transporter gene expression in ivermectin-susceptible and resistant Haemonchus contortus isolates
VETERINARY PARASITOLOGY; Año: 2022 vol. 302
MELIAN, MARÍA ELISA; IBARRA, MANUEL; CEBALLOS, LAURA; PAREDES, ALEJANDRO J.; MUNGUÍA, BEATRIZ; FACCIO, RICARDO; PALMA, SANTIAGO; ÁLVAREZ, LUIS IGNACIO; DOMÍNGUEZ, LAURA
Improving the in vitro dissolution rate and pharmacokinetic performance of fenbendazole in sheep using drug nanocrystals
RESEARCH IN VETERINARY SCIENCE; Año: 2022 vol. 142 p. 110 - 116
ERRECALDE, JORGE; LIFSCHITZ, ADRIAN; VECCHIOLI, GRACIELA; CEBALLOS, LAURA; ERRECALDE, FRANCISCO; BALLENT, MARIANA; MARÍN, GUSTAVO; DANIELE, MARTÍN; TURIC, ESTEBAN; SPITZER, EDUARDO; TONEGUZZO, FERNANDO; GOLD, SILVIA; KROLEWIECKI, ALEJANDRO; ALVAREZ, LUIS; LANUSSE, CARLOS
Safety and Pharmacokinetic Assessments of a Novel Ivermectin Nasal Spray Formulation in a Pig Model
JOURNAL OF PHARMACEUTICAL SCIENCES; Año: 2021
CANTON, LUCILA; CANTON, CANDELA; CEBALLOS, LAURA; DOMÍNGUEZ, PAULA; RODRÍGUEZ, JOSÉ; LANUSSE, CARLOS; ALVAREZ, LUIS; MORENO, LAURA
Oral and topical extra-label administration of fipronil to laying hens: Assessment of the egg residue patterns
JOURNAL OF VETERINARY PHARMACOLOGY AND THERAPEUTICS; Año: 2021
KROLEWIECKI, ALEJANDRO; LIFSCHITZ, ADRIÁN; MORAGAS, MATÍAS; TRAVACIO, MARINA; VALENTINI, RICARDO; ALONSO, DANIEL F.; SOLARI, RUBÉN; TINELLI, MARCELO A.; CIMINO, RUBÉN O.; ÁLVAREZ, LUIS; FLEITAS, PEDRO E.; CEBALLOS, LAURA; GOLEMBA, MARCELO; FERNÁNDEZ, FLORENCIA; FERNÁNDEZ DE OLIVEIRA, DIEGO; ASTUDILLO, GERMAN; BAECK, INÉS; FARINA, JAVIER; CARDAMA, GEORGINA A.; MANGANO, ANDREA; SPITZER, EDUARDO; GOLD, SILVIA; LANUSSE, CARLOS
Antiviral effect of high-dose ivermectin in adults with COVID-19: A proof-of-concept randomized trial
EClinicalMedicine; Año: 2021 vol. 37
MATAMOROS, GABRIELA; SÁNCHEZ, ANA; GABRIE, JOSÉ ANTONIO; JUÁREZ, MARISA; CEBALLOS, LAURA; ESCALADA, ANDRÉS; RODRÍGUEZ, CAROL; MARTÍ-SOLER, HELENA; RUEDA, MARÍA MERCEDES; CANALES, MARITZA; LANUSSE, CARLOS; CAJAL, PAMELA; ÁLVAREZ, LUIS; CIMINO, RUBÉN O; KROLEWIECKI, ALEJANDRO
Efficacy and safety of albendazole and high-dose ivermectin co-administration in school-aged children infected with Trichuris trichiura in Honduras: A Randomized Controlled Trial
CLINICAL INFECTIOUS DISEASES; Lugar: Chicago; Año: 2021
CANTON, CANDELA; CANTON, LUCILA; LIFSCHITZ, ADRIAN; DOMÍNGUEZ, MARÍA PAULA; TORRES, JUAN; LANUSSE, CARLOS; ALVAREZ, LUIS; CEBALLOS, LAURA; BALLENT, MARIANA
Monepantel pharmaco-therapeutic evaluation in cattle: Pattern of efficacy against multidrug resistant nematodes
International Journal for Parasitology: Drugs and Drug Resistance; Año: 2021 vol. 15 p. 162 - 167
CEBALLOS, L; NIEVES, E; JUAREZ, M; AVELDAÑO, R; TRAVACIO, MARINA; MARTOS, J; CIMINO, R; KROLEWIECKI, A; LANUSSE, C; ALVAREZ, L
Assessment of diet-related changes on albendazole absorption, systemic exposure and pattern of urinary excretion in treated human volunteers.
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY; Lugar: Washington; Año: 2021
CANTON, LUCILA; CANTON, CANDELA; CEBALLOS, LAURA; DOMÍNGUEZ, PAULA; RODRÍGUEZ, JOSÉ; LANUSSE, CARLOS; ALVAREZ, LUIS; MORENO, LAURA
Oral and topical extra-label administration of fipronil to laying hens: Assessment of the egg residue patterns
JOURNAL OF VETERINARY PHARMACOLOGY AND THERAPEUTICS; Año: 2021 vol. 44 p. 808 - 819
CANTON, C.; CEBALLOS, L.; DOMÍNGUEZ, M.P.; FIEL, C.; LIRÓN, J.P.; MORENO, L.; CANTON, L.; BERNAT, G.; LANUSSE, C.; ALVAREZ, L.I.
Impact on beef cattle productivity of infection with anthelmintic-resistant nematodes
NEW ZEALAND VETERINARY JOURNAL; Año: 2020 vol. 68 p. 187 - 192
ALVAREZ, LUIS I.; VALLADARES, MARÍA MARTINEZ; CANTON, CANDELA; LANUSSE, CARLOS E.; CEBALLOS, LAURA
Testing albendazole resistance in Fasciola hepatica
METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.); Año: 2020 vol. 2137 p. 213 - 220
CEBALLOS, LAURA; CANTON, CANDELA; CADENAZZI, GABRIELA; VIRKEL, GUILLERMO; DOMINGUEZ, PAULA; MORENO, LAURA; LANUSSE, CARLOS; ALVAREZ, LUIS
Oxfendazole kinetics in pigs: In vivo assessment of its pattern of accumulation in Ascaris suum
EXPERIMENTAL PARASITOLOGY; Año: 2019 vol. 199 p. 52 - 58
CANTON, LUCILA; ALVAREZ, LUIS; CANTON, CANDELA; CEBALLOS, LAURA; FARIAS, CRISTINA; LANUSSE, CARLOS; MORENO, LAURA
Effect of cooking on the stability of veterinary drug residues in chicken eggs
Food Additives and Contaminants - Part A Chemistry, Analysis, Control, Exposure and Risk Assessment; Año: 2019
CEBALLOS, LAURA; CANTON, CANDELA; PRUZZO, CESAR; SANABRIA, RODRIGO; MORENO, LAURA; SANCHIS, JAIME; SUAREZ, GONZALO; ORTIZ, PEDRO; FAIRWEATHER, IAN; LANUSSE, CARLOS; ALVAREZ, LUIS; VALLADARES, MARÍA MARTINEZ
The egg hatch test: a useful tool for albendazole resistance diagnosis in Fasciola hepatica
VETERINARY PARASITOLOGY; Año: 2019
CEBALLOS, LAURA; KROLEWIECKI, ALEJANDRO; JUÁREZ, MARISA; MORENO, LAURA; SCHAER, FABIAN; ALVAREZ, LUIS I.; CIMINO, RUBÉN; WALSON, JUDD; LANUSSE, CARLOS E.
Assessment of serum pharmacokinetics and urinary excretion of albendazole and its metabolites in human volunteers
PLOS NEGLECTED TROPICAL DISEASES; Año: 2018 vol. 12
MORENO, LAURA; BISTOLETTI, MARIANA; FERNÁNDEZ, HECTOR; CANTÓN, LUCILA; CEBALLOS, LAURA; CANTÓN, CANDELA; LANUSSE, CARLOS; ÁLVAREZ, LUIS I.
Albendazole treatment in laying hens: Egg residues and its effects on fertility and hatchability
JOURNAL OF VETERINARY PHARMACOLOGY AND THERAPEUTICS; Año: 2018 vol. 41 p. 726 - 733
CANTON, CANDELA; CANTON, LUCILA; DOMÍNGUEZ, MARÍA PAULA; MORENO, LAURA; LANUSSE, CARLOS; ALVAREZ, LUIS; CEBALLOS, LAURA
Field trial assessment of ivermectin pharmacokinetics and efficacy against susceptible and resistant nematode populations in cattle
VETERINARY PARASITOLOGY; Año: 2018 vol. 256 p. 43 - 49
MATÉ, L.; BALLENT, M.; CANTÓN, C.; CEBALLOS, L.; LIFSCHITZ, A.; LANUSSE, C.; ALVAREZ, L.; LIRON, J.P.
Assessment of P-glycoprotein gene expression in adult stage of Haemonchus contortus in vivo exposed to ivermectin
VETERINARY PARASITOLOGY; Año: 2018 vol. 264 p. 1 - 7
CEBALLOS, L.; CANTON, C.; CADENAZZI, G.; LARSEN, K.; VIRKEL, G.; MORENO, L.; FAIRWEATHER, I.; LANUSSE, C.; ALVAREZ, L.
Understanding the main route of drug entry in adult Fasciola hepatica : Further insights into closantel pharmacological activity
EXPERIMENTAL PARASITOLOGY; Año: 2017
CANTON, CANDELA; CEBALLOS, LAURA; FIEL, CÉSAR; MORENO, LAURA; DOMINGO YAGÜEZ, PABLO; BERNAT, GISELE; LANUSSE, CARLOS; ALVAREZ, LUIS
Resistant nematodes in cattle: Pharmaco-therapeutic assessment of the ivermectin- ricobendazole combination
VETERINARY PARASITOLOGY; Año: 2017 vol. 234 p. 40 - 48
CANTON, C.; CEBALLOS, L.; DOMÍNGUEZ, M.P.; MORENO, L.; FIEL, C.; BERNAT, G.; FARÍAS, C.; LANUSSE, C.; ALVAREZ, L.
Pharmaco-parasitological evaluation of the ricobendazole plus levamisole nematodicidal combination in cattle
JOURNAL OF VETERINARY PHARMACOLOGY AND THERAPEUTICS; Año: 2017
PENSEL, P; ULLIO GAMBOA, G; FABBRI, J; CEBALLOS, L; SANCHEZ BRUNI, S; ALVAREZ, L; ALLEMANDI, D; BENOIT, JP; PALMA, A; ELISSONDO, C
Cystic echinococcosis therapy: Albendazole-loaded lipidnanocapsules enhance the oral bioavailability and efficacy inexperimentally infected mice
ACTA TROPICA; Lugar: Amsterdam; Año: 2015 p. 185 - 194
CEBALLOS, L; ALVAREZ, L; MACKENZIE, C; GEARY, T; LANUSSE, C
Pharmacokinetic comparison of different flubendazole formulations in pigs: A further contribution to its development as a macrofilaricide molecule
International Journal for Parasitology: Drugs and Drug Resistance; Año: 2015 vol. 5 p. 178 - 184
ALVAREZ, L; SUAREZ, G; CEBALLOS, L; MORENO TORREJÓN, L.; CANTON, C; LIFSCHITZ, A; MATÉ, L ; BALLENT, M; VIRKEL, G; LANUSSE, C
Integrated assessment of ivermectin pharmacokinetics, efficacy against resistant Haemonchus contortus and P-glycoprotein expression in lambs treated at three different dosage levels
VETERINARY PARASITOLOGY; Lugar: Amsterdam; Año: 2015
CEBALLOS, L; ELISSONDO, C; SANCHEZ BRUNI, S; DENEGRI, G; LANUSSE, C
Combined Flubendazole-Nitazoxanide treatment of cystic echinococcosis: pharmacokinetic and efficacy assessment in mice
ACTA TROPICA; Lugar: Amsterdam; Año: 2015
MORENO, L; DOMINGUEZ, P; FARIAS, C; CANTON, L; VIRKEL, G; MATÉ, L; CEBALLOS, L; LANUSSE C; ALVAREZ, L
Ivermectin Pharmacokinetics, Metabolism, and Tissue/Egg Residue Profiles in Laying Hens
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY; Lugar: Washington; Año: 2015
CANEVARI, J; CEBALLOS, L; SANABRIA, R; ROMERO, J; OLAECHEA, F; ORTIZ, P; CABRERA, M; GAYO, V; FAIRWEATHER, I; LANUSSE, C; ALVAREZ, L
Testing albendazole resistance in Fasciola hepatica: validation of an egg hatch test with isolates from South America and the United Kingdom
Journal of Helminthology; Año: 2014 p. 286 - 292
ORTIZ, P; TERRONES, S; CABRERA, M; HOBAN, C; CEBALLOS, L; MORENO, L; CANTON, C; DONEDEU, M; LANUSSE, C; ALVAREZ, L
Oxfendazole flukicidal activity in pigs
ACTA TROPICA; Lugar: Amsterdam; Año: 2014
MORENO, L*; CEBALLOS, L*; FAIRWEATHER, I; LANUSSE, C; ALVAREZ, L
Time-course and accumulation of triclabendazole and its metabolites in bile, liver tissues and flukes collected from treated sheep
EXPERIMENTAL PARASITOLOGY; Lugar: Amsterdam; Año: 2014 vol. 136 p. 14 - 19
CEBALLOS, L; MACKENZIE, C; GEARY, T; ALVAREZ, L; LANUSSE, C
Exploring the potential of flubendazole in filariasis control: evaluation of the systemic exposure for different pharmaceutical preparations
PLOS NEGLECTED TROPICAL DISEASES; Lugar: San Francisco; Año: 2014 p. 2838 - 2844
CEBALLOS, L; VIRKEL, G; ELISSONDO, C; CANTON, C; CANEVARI, J; MURNO, G; DENEGRI, G; LANUSSE, C; ALVAREZ, L
A pharmacology-based comparison of the activity of albendazole and flubendazole against Echinococcus granulosus metacestode in sheep
ACTA TROPICA; Lugar: Amsterdam; Año: 2013
ALVAREZ, L; SAUMELL, C; FUSE, L; MORENO, L; CEBALLOS, L; DOMINGUEC, G; DONADEU, M; DUNGU, B; LANUSSE, C
Efficacy of a single high oxfendazole dose against gastrointestinal
VETERINARY PARASITOLOGY; Lugar: Amsterdam; Año: 2013
CASTRO, S; SANCHEZ BRUNI, S; URBIZU, L; CONFELONIERI, A; CEBALLOS, L; LANUSSE, C; ALLIMANDI, A; PALMA, A
Enhanced dissolution and systemic availability of albendazole formulated as solid dispersions
PHARMACEUTICAL DEVELOPMENT AND TECHNOLOGY; Lugar: Londres; Año: 2013 p. 434 - 442
SCARCELLA, S; SOLANA, V; FERNANDEZ, V; LAMENZA, P; CEBALLOS, L; SOLANA, H
Increase of gluthatione S-transferase, carboxyl esterase and carbonyl reductase in Fasciola hepatica recovered from triclabendazole treated sheep
MOLECULAR AND BIOCHEMICAL PARASITOLOGY; Lugar: Amsterdam; Año: 2013 p. 63 - 65
SANABRIA, R*; CEBALLOS, L*; MORENO, L; ROMERO, J; LANUSSE, C; ALVAREZ, L
Identification of a field isolate of Fasciola hepatica resistant to
VETERINARY PARASITOLOGY; Lugar: Amsterdam; Año: 2013 vol. 193 p. 105 - 110
BARRèRE, V; ALVAREZ, L; SUAREZ, G; CEBALLOS, L; MORENO TORREJÓN, L.; LANUSSE, C; PRICHARD, R
Relationship between increased albendazole systemic exposure and changes in single nucleotide polymorphisms on the â- tubulin isotype 1 encoding gene in Haemonchus contortus
VETERINARY PARASITOLOGY; Lugar: Amsterdam; Año: 2012 p. 344 - 349
CEBALLOS, L; MORENO, L.; TORRADO, J; LANUSSE, C; ALVAREZ, L
Exploring flubendazole formulations for use in sheep. Pharmacokinetic evaluation of a cyclodextrin-based solution
BMC VETERINARY RESEARCH; Lugar: Londres; Año: 2012 p. 71 - 71
SCARCELLA, S; MIRANDA-MIRANDA, E; COSSÍO-BAYÚGAR; CEBALLOS, L; FERNANDEZ, V; SOLANA, H
Increase of carboxylesterase activity in Fasciola hepatica recovered from triclabendazole treated sheep
MOLECULAR AND BIOCHEMICAL PARASITOLOGY; Lugar: Amsterdam; Año: 2012
ALVAREZ, L; SUAREZ, G; CEBALLOS, L; MORENO TORREJÓN, L.; LANUSSE, C
Dose-dependent systemic exposure of albendazole metabolites in lambs
JOURNAL OF VETERINARY PHARMACOLOGY AND THERAPEUTICS; Año: 2011
CEBALLOS, L; ELISSONDO, C; SANCHEZ BRUNI, S; DENEGRI, G; LANUSSE, C; ALVAREZ, L
Comparative performance of flubendazole and albendazole in cystic echinococcosis: ex vivo activity, plasma/cysts disposition and efficacy in infected mice.
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY; Lugar: Washington; Año: 2011 p. 5861 - 5867
CEBALLOS, L; MORENO, L.; ALVAREZ, L; SHAW, L; FAIRWEATHER, I; LANUSSE, C
Unchanged triclabendazole kinetics after co-administration with ivermectin and
BMC VETERINARY RESEARCH; Año: 2010 vol. 3 p. 6 - 8
MORENO, L; CEBALLOS, L; LIFSCHITZ, A; BISTOLETTI, M; ALVAREZ, L; LANUSSE, C
Combined subcutaneous administration of ivermectin and nitroxynil in sheep:
RESEARCH IN VETERINARY SCIENCE; Año: 2010 p. 315 - 320
CEBALLOS L; ELISSONDO, C; SANCHEZ BRUNI, S; CONFELONIERI, A; DENEGRI, G; ALVAREZ, L; LANUSSE, C
CHEMOPROPHYLACTIC ACTIVITY OF FLUBENDAZOLE IN CYSTIC ECHINOCOCCOSIS
CHEMOTHERAPY; Año: 2010 vol. 56 p. 386 - 392
ALVAREZ, L; ENTROCASSO, C; LIFSCHITZ, A; MANAZZA, J; CEBALLOS L; BORDA, B; LANUSSE, C
ALBENDAZOLE FAILURE TO CONTROL RESISTANT NEMATODES IN LAMBS: LACK OF EFFECT OF FASTING-INDUCED IMPROVEMENT ON DRUG ABSORPTION
JOURNAL OF PARASITOLOGY; Año: 2010
ELISSONDO, M; CEBALLOS, L; ALVAREZ, L; SANCHEZ BRUNI, S; LANUSSE, C; DENEGRI, G
Flubendazole and ivermectin in vitro combination therapy produces a marked effect on Echinococcus granulosus protoscoleces and metacestodes
PARASITOLOGY RESEARCH; Año: 2009 p. 835 - 842
ALVAREZ, L; MORENO, L.; MORENO, G; CEBALLOS, L; SHAW, L; FAIRWEATHER, I
Comparative assessment of albendazole and triclabendazole
VETERINARY PARASITOLOGY; Año: 2009 p. 211 - 216
CEBALLOS, L; ELISSONDO, M; SANCHEZ BRUNI, S; DENEGRI, G; ALVAREZ, L; LANUSSE, C
Flubendazole in cystc echinococcosis therapy: pharmaco-parasitological evaluation in mice
PARASITOLOGY INTERNATIONAL; Año: 2009 p. 354 - 358
MORENO, L; ALVAREZ, L; CEBALLOS, L; SANCHEZ BRUNI, S; LANUSSE, C
Pattern of ivermectin (sheep) and doramectin (cattle) residues in muscular tissue from various anatomical locations
FOOD ADDITIVES AND CONTAMINANTS; Año: 2008 vol. 25 p. 406 - 412
CEBALLOS, L; ELISSONDO, M; MORENO, L; DOPCHIZ, M; SANCHEZ BRUNI, S; DENEGRI, G; ALVAREZ, L; LANUSSE, C
Albendazole treatment in cystic echinococcosis: pharmacokinetic and clinical efficacy of two different aqueous formulations
PARASITOLOGY RESEARCH; Año: 2008 vol. 1003 p. 355 - 362
ELISSONDO, M; CEBALLOS, L; DOPCHIZ, M; ANDRESIUK, V; ALVAREZ, L; SANCHEZ BRUNI, S; LANUSSE, C; DENEGRI, G
In vitro and in vivo effects of flubendazole on echinococcus granulosus metacestodes
PARASITOLOGY RESEARCH; Año: 2007 vol. 100 p. 1003 - 1009
ELISSONDO, M; DOPCHIZ, M; CEBALLOS, L; ALVAREZ, L; SANCHEZ BRUNI, S; LANUSSE, C; DENEGRI, G
In vitro effects of flubendazole on echinococcus granulosus protoscoleces
PARASITOLOGY RESEARCH; Año: 2006 vol. 98 p. 317 - 323
MOTTIER, L; ALVAREZ, L; CEBALLOS, L; LANUSSE, C
Drug transport mechanisms in helminth parasites: passive diffusion of benzimidazole anthelmintics
EXPERIMENTAL PARASITOLOGY; Año: 2006 vol. 113 p. 49 - 57