Geographic variation in expenditures for physicians' services in the United States (Q34360143)
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(P31) (Q13442814)
(P50) (Q20675535)
(P304) 621-627
(P407) (Q1860)
(P433) 9
(P478) 328
(P577) Monday, March 1, 1993
(P921) (Q30)
(P1433) (Q582728)
(P1476) "Geographic variation in expenditures for physicians' services in the United States" (language: en)
(P2093) Welch WP
Miller ME
Fisher ES
Wennberg JE
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