[Thirty years later....].
Doan
B D
BD
D002160:Cambodia; D003226:Congresses as Topic; D003718:Denmark; D005602:France; D006801:Humans; D006814:Hungary; D008097:Lithuania; D010297:Paris; D010820:Physicians / Q000600:supply & distribution*; D012106:Research; D012800:Siberia; D012962:Sociology, Medical; D013548:Sweden; D014421:Turkey; D014944:World Health Organization