Full text: Available Index: LILACS (Americas) Main subject: Phenotype / Polymorphism, Genetic / ABO Blood-Group System / Antigens, Differentiation / Genotype / Mutation Limits: Humans Country/Region as subject: South America / Brazil Language: English Journal: Rev. bras. hematol. hemoter Journal subject: Hematology Year: 2016 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade de Campinas/BR