perforation
3.acute gastroduodenal ulcer perforation
5.A mark or a perforation indicating canceling.
6.1 case of taint caused by esophageal perforation;
7.Diagnosis and Surgical Therapy of TMJ Disc Perforation
8.Discussion on Perforation Technology in CBM Horizontal Wells
9.Conclusion Operation is effective for temporomandibular joint disc perforation.
10.An ornament inserted into a perforation in the lip.


