P-1 blood group substance in Lumbricus terrestris (earthworm) and Ascaris suum.
D000818:Animals; D000845:Annelida / Q000032:analysis*; D001200:Ascaris / Q000032:analysis*; D001789:Blood Group Antigens; D004912:Erythrocytes / Q000032:analysis*
D001789:Blood Group Antigens