Medical and Surgical @ Gastrointestinal System @ Removal @ Upper Intestinal Tract @ Via Natural or Artificial Opening Endoscopic @ Autologous Tissue Substitute
medical and surgical @ gastrointestinal system @ removal @ upper intestinal tract @ via natural or artificial opening endoscopic @ autologous tissue substitute
Medical and Surgical @ Gastrointestinal System @ Removal @ Upper Intestinal Tract @ Via Natural or Artificial Opening Endoscopic @ Autologous Tissue Substitute
medical and surgical @ gastrointestinal system @ removal @ upper intestinal tract @ via natural or artificial opening endoscopic @ autologous tissue substitute