英语翻译Errol R.Norwitz,M.D,Ph.DLouis E.Phaneuf professor of Obs

英语翻译
Errol R.Norwitz,M.D,Ph.D
Louis E.Phaneuf professor of Obstetrics & Gynecology
Tufts university School of Medicine
Chairman,Department of Obstetrics& Gynecology
Tufts Medical Center
Boston,MA
USA
January 12,2013我疑惑的是Louis E.Phaneuf妇产科教授后面接的三个机构到底是属于这两个作者中哪个的身份?