Á¦ ¸ñ    oUZmHBfroHxYJxFV ÀÌ ¸§    Cletus ³¯ Â¥    2018/06/29 Á¶ ȸ    8 A Second Class stamp xenical rxlist There's no universal way to distinguish med students and residents from staff physicians. In some hospitals, trainees wear shorter white coats than senior docs; other facilities use color coding to signal rank. This lack of standardization means a resident can easily be mistaken for a staff doctor, Merlino said.Â