ER Season 3 Episode 21 1996
8IMDB
ER Season 3 Episode 21: It's Carol's birthday, Mark is returning to work after being assaulted and Carla goes into premature labor.
- Aired:May 08, 1997
- Seasons:15 · Episodes:331
- Country:United States of America
- Created by: Michael Crichton
- Network:NBC
