[Influenza and natural selection according to blood group factors].
D000017:ABO Blood-Group System; D002031:Bulgaria; D006801:Humans; D007251:Influenza, Human / Q000097:blood* / Q000401:mortality; D008951:MNSs Blood-Group System; D012641:Selection, Genetic
D000017:ABO Blood-Group System; D008951:MNSs Blood-Group System
Gripp i estestvennyĭ otbor po gruppovym faktoram krovi