. . . "Controlled comparison of the efficacy of fourteen preparations in the relief of postoperative pain"@nl . . . . "im Juli 1971 ver\u00F6ffentlichter wissenschaftlicher Artikel"@de . "Controlled comparison of the efficacy of fourteen preparations in the relief of postoperative pain"@en . . . . . . "J D Morrison" . "J W Dundee" . . . "Controlled comparison of the efficacy of fourteen preparations in the relief of postoperative pain"@nl . . . . . "Controlled comparison of the efficacy of fourteen preparations in the relief of postoperative pain"@nl . . . "3" . . . . . . . . . "\u043D\u0430\u0443\u043A\u043E\u0432\u0430 \u0441\u0442\u0430\u0442\u0442\u044F, \u043E\u043F\u0443\u0431\u043B\u0456\u043A\u043E\u0432\u0430\u043D\u0430 \u0432 \u043B\u0438\u043F\u043D\u0456 1971"@uk . . . "4934047" . . . . "scientific article published on 01 July 1971"@en . "1799136" . . . . . . . . . "10.1136/BMJ.3.5769.287" . . . "Controlled comparison of the efficacy of fourteen preparations in the relief of postoperative pain"@en . . . . "Controlled comparison of the efficacy of fourteen preparations in the relief of postoperative pain"@en . "287-290" . . . . . "art\u00EDculu cient\u00EDficu espubliz\u00E1u en xunetu de 1971"@ast . . . . . "1971-07-01T00:00:00Z"^^ . "W B Loan" . . . . . "wetenschappelijk artikel"@nl . "Controlled comparison of the efficacy of fourteen preparations in the relief of postoperative pain"@en . . "5769" .