Excision of Sigmoid Colon, Via Natural or Artificial Opening, Diagnostic
excision of sigmoid colon, via natural or artificial opening, diagnostic
Medical and Surgical @ Gastrointestinal System @ Excision @ Sigmoid Colon @ Via Natural or Artificial Opening @ No Device @ Diagnostic
medical and surgical @ gastrointestinal system @ excision @ sigmoid colon @ via natural or artificial opening @ no device @ diagnostic