title: Population studies in northern Sweden. IV. Frequency of the blood type p.
mesh_terms: D001789:Blood Group Antigens; D005006:Ethnicity; D005260:Female; D005787:Gene Frequency; D006801:Humans; D007178:Inbreeding; D008297:Male; D012641:Selection, Genetic; D013548:Sweden / Q000208:ethnology
chemical_list: D001789:Blood Group Antigens