History of cytodiagnosis.
D003585:Cell Biology / Q000266:history; D003581:Cytodiagnosis; D005260:Female; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D011247:Pregnancy; D013183:Sputum / Q000166:cytology; D014626:Vaginal Smears