title: Keyhole biopsy: an easy and better alternative to fine-needle aspiration or Tru-cut biopsy of submucosal gastrointestinal tumors.
authors.forename: P
authors.initials: P
authors.lastname: Grubel
mesh_terms: D000368:Aged; D001706:Biopsy / Q000379:methods*; D016099:Endoscopy, Gastrointestinal; D046152:Gastrointestinal Stromal Tumors / Q000473:pathology*; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology