Insertion of Other Device into Gastrointestinal Tract, Via Natural or Artificial Opening
insertion of other device into gastrointestinal tract, via natural or artificial opening
Medical and Surgical @ Anatomical Regions, General @ Insertion @ Gastrointestinal Tract @ Via Natural or Artificial Opening @ Other Device @ No Qualifier
medical and surgical @ anatomical regions, general @ insertion @ gastrointestinal tract @ via natural or artificial opening @ other device @ no qualifier