[Inherent problems of a hemoglobin determination survey in Latin America].
D000747:Anemia, Hypochromic / Q000097:blood / Q000453:epidemiology*; D002489:Central America; D006306:Health Surveys; D006452:Hemoglobinometry; D007501:Iron / Q000097:blood; D008722:Methods; D008800:Mexico; D013020:South America
D007501:Iron
Problemas inherentes a una encuesta para determinar la hemoglobina en America Latina