RT Book, Section A1 Ahern, Gerard A1 Brygel, Maurice SR Print(0) ID 1167658154 T1 Abdomen T2 Exploring Essential Surgery YR 2014 FD 2014 PB McGraw-Hill Education PP New York, NY SN 9781264269587 LK accesssurgery.mhmedical.com/content.aspx?aid=1167658154 RD 2024/04/20 AB The abdomen is a module made up of four regions: