[Elena Semenovna Leĭkina (on her 60th birthday)].
D006373:Helminthiasis / Q000266:history; D049673:History, 20th Century; D006801:Humans; D010274:Parasitology / Q000266:history; D014330:Tropical Medicine / Q000266:history; D014586:USSR
Elena Semenovna Leŭikina (k 60-letitu so dnia rozhdeniia)