title: Factors influencing anhaptoglobinemia in newborns from Salvador, Brazil.
mesh_terms: D000017:ABO Blood-Group System; D000293:Adolescent; D000328:Adult; D001724:Birth Weight; D044383:Black People; D001769:Blood; D001787:Blood Group Incompatibility; D001938:Brazil; D003433:Crosses, Genetic; D004592:Electrophoresis, Starch Gel; D005260:Female; D014644:Genetic Variation; D005828:Genetics, Population; D005838:Genotype; D006242:Haptoglobins / Q000378:metabolism; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D010298:Parity; D012959:Socioeconomic Factors; D014470:Umbilical Cord; D044465:White People
chemical_list: D000017:ABO Blood-Group System; D006242:Haptoglobins