A perforated unitary multi-laminar tissue graft construct and method for preparing such construct is described. The method comprises overlapping strips of submucosa tissue with other strips of submucosal tissue, compressing at least the overlapped portions of said strips between two surfaces under conditions...http://www.google.com/patents/US5968096?utm_source=gb-gplus-sharePatent US5968096 - Method of repairing perforated submucosal tissue graft constructs
