Bleeding events were considered critical if they occurred in intracranial, intraspinal, intraocular, pericardial, intra-articular, intramuscular (with compartment syndrome) or retroperitoneal sites.

You might have surgery to remove lymph nodes in your tummy (abdomen). These are called the retroperitoneal lymph nodes. This operation is called a retroperitoneal lymph node dissection. This is a ...