title: The Rh factor in the American Negro; a preliminary report.
authors.forename: P M
authors.initials: PM
authors.lastname: SANTOS
authors.forename: R C
authors.initials: RC
authors.lastname: STEPTO
mesh_terms: D001741:Black or African American; D006801:Humans; D012204:Rh-Hr Blood-Group System; D014481:United States
chemical_list: D012204:Rh-Hr Blood-Group System
keywords: Rh FACTOR