Results 171 to 180 of about 287,016 (257)

Performance of the Colombian surveillance system during the COVID-19 pandemic: A rapid evaluation of the first 50 days [PDF]

open access: yesBiomedica, 2020
Manrique-Hernández EF   +4 more
europepmc   +1 more source

Gift authorship: An approach to its frequency in a Peruvian journal [PDF]

open access: yesBiomedica, 2019
Zafra-Tanaka JH   +3 more
europepmc   +1 more source

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