1990 2000f-909 anatomy atlases biopsy cancer classification deglutition deglutitiondisorders diagnosis diagnostictechniques diagnostiek digestiveorgans digestivesystem diseases duodenaldiseases duodenum esophagealdiseases esophagealneoplasms histology histopathology maagkanker monitoring pathogenesis pathologie pathology pharynx physiologic physiology physiopathology slokdarm speechtherapy stomach stomachdiseases stomachneoplasms surgery therapy treatment tumoren tumors wi100p29771984 wi15w324h1990 wi250e7621988 wi250e76282005 wi250e7651983 wi250m4891980 wi250p8952000