title: Lee responds.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Lee
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D019637:Orthopedic Procedures / Q000009:adverse effects*; D011183:Postoperative Complications / Q000453:epidemiology*; D013131:Spine / Q000601:surgery*