title: Propensity score methods: setting the score straight.
authors.forename: Skye C
authors.initials: SC
authors.lastname: Mayo
authors.forename: Timothy M
authors.initials: TM
authors.lastname: Pawlik
mesh_terms: D001062:Appendectomy / Q000379:methods*; D001064:Appendicitis / Q000601:surgery*; D005260:Female; D006801:Humans; D010535:Laparoscopy / Q000379:methods*; D007813:Laparotomy / Q000379:methods*; D008297:Male