Appendix A

Question 1

Open

Answer 1

Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure.

Question 2

percutaneous

Answer 2

entry by puncture or minor incision of instrumentation through the skin or mucous membrane and any other body layers necessary to reach the site of procedure.

Question 3

percutaneous endoscopic

Answer 3

entry by puncture or minor incision of instrumentation through the skin or mucous membrane and any other body layers necessary to reach the site of the procedure.

Question 4

via natural or artificial opening

Answer 4

entry of instrumentation through a natural or artificial opening to reach the site of the procedure

Question 5

via natural or artificial opening endoscopic

Answer 5

entry of instrumentation through a natural or artificial openingto reach and visualize the site of procedure

Question 6

via natural and artificial opening with percutaneous endoscopic assistance

Answer 6

entry of instrumentation through a natural or artificial openingand entry by puncture or minor incision of instrumentation through the skin or mucous membrane and any other body layers necessary to aid the performance of the procedure

Question 7

external

Answer 7

procedure performed directly on the skin or mucous membrane and procedures preformed indirectly by the application of external force through the skin or mucous membrane

Question 8

,