Retrospective studies. A review for the clinician (Q39963562)
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(P31) (Q13442814)
(P304) 381-386
(P407) (Q1860)
(P433) 3
(P478) 81
(P577) Sunday, September 1, 1974
(P1433) (Q564416)
(P1476) "Retrospective studies. A review for the clinician" (language: en)
(P2093) Sartwell PE
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