Correspondence (letter to the editor): Umbilical cord vein.
Karl-Friedrich
KF
Klippel
D004724:Endoscopy / Q000706:statistics & numerical data*; D006801:Humans; D007674:Kidney Diseases / Q000453:epidemiology*; D008297:Male; D014525:Urethral Stricture / Q000453:epidemiology* / Q000628:therapy*; D014526:Urethritis / Q000453:epidemiology* / Q000628:therapy*; D014547:Urinary Diversion / Q000706:statistics & numerical data*