title: Seasonal variation in the incidence of congenital malformations in San Miguel de Allende, Mexico.
authors.affiliation: University of Texas, Health Science Center, School of Public Health, Houston 77225.
authors.forename: A
authors.initials: A
authors.lastname: Valadez
authors.forename: A A
authors.initials: AA
authors.lastname: Meltzer
mesh_terms: D000013:Congenital Abnormalities / Q000453:epidemiology*; D006801:Humans; D007231:Infant, Newborn; D008800:Mexico / Q000453:epidemiology; D010507:Periodicity; D012307:Risk Factors; D012621:Seasons