. . "Gastroenterology Methodology Handbooks, manuals, etc." . . "Endoscopy." . . "Gastrointestinal Diseases nursing." . . "Gastrointestinal Diseases nursing Handbooks." . . "Endoscopy, Digestive System nursing." . . . . . . . . "Handbooks, manuals, etc" . . . . . . "Handbooks and manuals" . . "Handbooks and manuals"@en . . . . . . . . . . . . "Manual of gastrointestinal procedures"@en . . . . "Manual of gastrointestinal procedures" . . . . "Gastrointestinal system Diseases Treatment Handbooks, manuals, etc." . .