Of the respondents, 46.1 % of surgeons use chlorhexidine baths at home preoperatively for insertions, 42.5 % obtain preoperative laboratories (such as albumin, prealbumin, TWBC, TLC, serum transferrin) to stratify for infection, and 30.8 % obtain MRSA swabs to guide preoperative antibiotic choice. The gene discussed is ALB; the disease is infection.