title: The second edge of the sword.
mesh_terms: D001458:Bandages; D002404:Catheterization / Q000009:adverse effects; D003428:Cross Infection / Q000517:prevention & control*; D004322:Drainage / Q000009:adverse effects; D006197:Hair; D006801:Humans; D013514:Surgical Procedures, Operative; D013530:Surgical Wound Infection / Q000517:prevention & control*