[Quality assurance and quality management].
D001330:Electronic Data Processing; D005858:Germany; D006801:Humans; D011183:Postoperative Complications / Q000191:economics / Q000517:prevention & control; D011785:Quality Assurance, Health Care; D013514:Surgical Procedures, Operative / Q000191:economics / Q000592:standards*; D013530:Surgical Wound Infection / Q000191:economics / Q000517:prevention & control*