[Nadezhda Alekseevna Frolova (on her 60th birthday)].
D049673:History, 20th Century; D011635:Public Health Administration / Q000266:history; D012936:Social Medicine / Q000266:history; D014586:USSR
Nadezhda Alekseevna Frolova (k 60-letiiu so dnia rozhdeniia).