Results 111 to 120 of about 448,480 (192)

[[The Future of Clinical Trials]]. [PDF]

open access: yesActa Gastroenterol Latinoam
Masson W.
europepmc   +1 more source

Nemtadodos parásitos de la cascabel Neotropical Crotalus Durissus Linnaeus, 1758 (Ophidia, Viperidae) en Brasil: nuevos registros y aspectos generales

open access: gold, 2010
Roberto Mello da Costa Pinto   +3 more
openalex   +1 more source

[Brief organizational history of epidemiological surveillance at the IMSS]. [PDF]

open access: yesRev Med Inst Mex Seguro Soc
Arriaga-Nieto L   +4 more
europepmc   +1 more source

Ampliación de la distribución altitudinal y geográfica de Lithobates johni y nuevo registro para Veracruz, México

open access: diamond, 2015
Edgar Ahmed Bello-Sánchez   +4 more
openalex   +2 more sources

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