If they had known how hard their jobs would be, one-third of doctors would have chosen another career, according to an online survey. The survey of 180 doctors and health care administrators in British Columbia was conducted by Leger Marketing. Possible reasons for the discontent, says Dr. Bill Mackie, president of the B.C. Medical Association, include feeling undervalued, underpaid and unsupported. According to University of British Columbia professor Bob Smith, due to its small sample size, the survey should be used as a basis for a more comprehensive study.