flexible sigmoidoscopy, sigmoidoscopy, paracentesis, guaiac, colonoscopy, transthoracic, gastroscopy, haematuria, biopsies, thyroidectomy, arthrography, immunochemical, cytologic, ethambutol, venography, cholecystectomy, thoracentesis, laparoscopic cholecystectomy, aspirates, sigmoidoscope, cystoscope, thymectomy, gastrostomy, ascus, manometry, decortication, enucleation, metaplasia, orchiectomy, sympathectomy, epidural anesthesia, sigmoid colon, laparotomy, venipuncture, lavage, adenoidectomy, keratoplasty, anal canal, lumbar puncture, varices, polypectomy, pap smear, fibroma, lipomas, pneumonectomy, coagulase, colectomy, lobectomy, radical hysterectomy, hematuria, hamartoma, pap test, adenoma, oesophagitis, calculi, gastrectomy, rectovaginal, ultrasonography, hiatus hernia, polypoid, myringotomy, retroperitoneal, fibrocystic, cauterization, computed tomography, osteoid, glucose tolerance test, oesophageal, axilla, ascending colon, arteriography, nephrectomy, proctitis, topical anesthesia, uppp, parathyroidectomy, squamous, esophagitis, hepatectomy, mammographic, endometrial carcinoma, fluoroscopic, needle biopsy, tuberculin, ketorolac, mci, hyperplastic, colonoscopies, rh factor, pyelonephritis, hemoptysis, ophthalmoscopy, preop, esophageal reflux, histopathology, eccrine, orchidectomy, thyroglobulin, curettage, atrioventricular block, adrenalectomy, adenomatous polyp