Search Strategies Used in Our Literature Review

MeSH® terms	Number of articles retrieved
(“hospital-physician relations”[MeSH Terms] OR (“hospital-physician”[All Fields] AND “relations”[All Fields]) OR “hospital-physician relations”[All Fields] OR (“hospital”[All Fields] AND “physician”[All Fields] AND “relations”[All Fields]) OR “hospital physician relations”[All Fields]) AND alignment[All Fields]	30
(“hospital”[All Fields] AND “physician”[All Fields]) OR “hospital physician”[All Fields]) AND alignment[All Fields]	9
“Physician Incentive Plans”[MAJR] AND (“insurance”[MeSH Terms] OR “insurance”[All Fields])	4
(“hospitals”[MeSH Terms] OR “hospitals”[All Fields] OR “hospital”[All Fields]) AND purchasing[All Fields] AND (“orthopaedic”[All Fields] OR “orthopedics”[MeSH Terms] OR “orthopedics”[All Fields] OR “orthopedic”[All Fields])	10
(“Physician Incentive Plans/economics”[MeSH Terms] AND “Physician Incentive Plans/organization and administration”[MAJR]) AND “Physician Incentive Plans”[MAJR]	15
(physician[All Fields] AND ((“motivation”[MeSH Terms] OR “motivation”[All Fields] OR “incentive”[All Fields]) AND plans[All Fields]) AND ((“delivery of health care”[MeSH Terms] OR (“delivery”[All Fields] AND “health”[All Fields] AND “care”[All Fields]) OR “delivery of health care”[All Fields] OR (“delivery”[All Fields] AND “healthcare”[All Fields]) OR “delivery of healthcare”[All Fields]) AND integrated[All Fields]) AND (“economics”[Subheading] OR “economics”[All Fields] OR “economics”[MeSH Terms])	5
(“delivery of health care”[MeSH Terms] OR (“delivery”[All Fields] AND “health”[All Fields] AND “care”[All Fields]) OR “delivery of health care”[All Fields]) AND (“economics”[Subheading] OR “economics”[All Fields] OR “economics”[MeSH Terms]) AND Competition[All Fields] AND (“health services”[MeSH Terms] OR (“health”[All Fields] AND “services”[All Fields]) OR “health services”[All Fields]) AND (“united states”[MeSH Terms] AND English[lang]	4
“Delivery of Health Care, Integrated/economics”[MeSH Terms] AND “Delivery of Health Care, Integrated/legislation and jurisprudence”[MeSH Terms] AND “Delivery of Health Care, Integrated/organization and administration”[All Fields] AND English[lang]	2
(“orthopedics”[MeSH Terms] OR “orthopedics”[All Fields]) AND (“motivation”[MeSH Terms] OR “motivation”[All Fields] OR “incentives”[All Fields]) AND (“ethics”[Subheading] OR “ethics”[All Fields] OR “ethics”[MeSH Terms]) AND English[lang]	1
“orthopedics/economics”[MeSH Terms] AND reimbursement[All Fields] AND (“insurance”[MeSH Terms] OR “insurance”[All Fields]) AND English[lang]	1

The remaining articles in the primary MEDLINE^® search were located through the Related Citations search function in PubMed.