Medical and Surgical @ Anatomical Regions, General @ Removal @ Gastrointestinal Tract @ Via Natural or Artificial Opening Endoscopic @ Radioactive Element
medical and surgical @ anatomical regions, general @ removal @ gastrointestinal tract @ via natural or artificial opening endoscopic @ radioactive element
Medical and Surgical @ Anatomical Regions, General @ Removal @ Gastrointestinal Tract @ Via Natural or Artificial Opening Endoscopic @ Radioactive Element
medical and surgical @ anatomical regions, general @ removal @ gastrointestinal tract @ via natural or artificial opening endoscopic @ radioactive element