adverseeffects anesthesia clinicalmedicine complications dd7050 deliveryofhealthcare diagnosis diagnosticerrors ethics health healthinsurance healthriskassessment iatrogenicdiseases insurance lawandlegislation liability malpractice medical medicalcare medicalethics medicationerrors medicine medicinesociology orthopedics philosophy politics popularworks postoperativecomplications qualityofhealthcare qz42g811m1983 radiography radioscopic socialmedicine therapeutics unitedstates wa30i29m1975 wa30i29m1976 wa30ill wa31i291976 wn445r12851984 wo184u561978