Najma Ahmed, St. Michael's Hospital (IMAGE) St. Michael's Hospital Caption Strictly limiting the number of hours surgical residents can work has not improved patient outcomes but may have increased complications for some patients and led to higher failure rates on certification exams, according to a research paper by Dr. Najma Ahmad, a trauma surgeon at St. Michael's Hospital. Credit Courtesy of St. Michael's Hospital Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.