Results 81 to 90 of about 1,337 (106)

Internal migration and its association with childhood asthma in Ecuador: a cross-sectional study. [PDF]

open access: yesColomb Med (Cali)
Cruz Mariño AV   +4 more
europepmc   +1 more source

Dried blood as an alternative to plasma or serum for Trypanosoma cruzi IgG detection in screening programs. [PDF]

open access: yesClin Vaccine Immunol, 2013
Holguín A   +6 more
europepmc   +1 more source

[Europe, a good alternative]. [PDF]

open access: yesAten Primaria, 2004
Alexandre Ayuso A.
europepmc   +1 more source

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