No more knives.
Findlay
S
S
Podolsky
D
D
Roberts
M
M
D000005:Abdomen / Q000601:surgery; D001415:Back / Q000601:surgery; D006348:Cardiac Surgical Procedures / Q000639:trends; D006801:Humans; D013514:Surgical Procedures, Operative / Q000639:trends*; D014481:United States