title: THE FREQUENCY AND NATURE OF BLOOD GROUP A3.
mesh_terms: D001782:Blood Donors; D001789:Blood Group Antigens; D002170:Canada; D003718:Denmark; D005455:Fluorescent Antibody Technique; D006801:Humans; D013223:Statistics as Topic
chemical_list: D001789:Blood Group Antigens
keywords: BLOOD DONORS; BLOOD GROUPS; CANADA; DENMARK; FLUORESCENT ANTIBODY TECHNIC; STATISTICS