[Problems of prevention in the 7 Vserossiiskii S"ezd Zdravotdelov. (On the thirtieth anniversary of the 7 Vserossiiskii S"ezd Zdravotdelov)].
D000846:Anniversaries and Special Events; D035843:Biomedical Research; D006801:Humans; D011315:Preventive Medicine / Q000266:history*
PREVENTIVE MEDICINE/history