Perioperative care; procedures; trauma; tumors; airway, lung and thoracic cavity; oesophagus; abdominal wall, periotoneum and diaphragm; stomach, duodenum, and small intestine; colon, rectum and anus; liver, biliary tract, pancreas and spleen; kidney, ureter and bladder; genitalia; skin, soft tissue and blood vessels; additional miscellaneous surgical disorders.
