Norman, Jane EMackenzie, FionaOwen, PhilipMactier, HelenHanretty, KevinCooper, SarahCalder, AndrewMires, GaryDanielian, PeterSturgiss, StephenMacLennan, GraemeTydeman, GrahamThornton, StevenMartin, BillThornton, James GNeilson, James PNorrie, John2013-02-122013-02-122009-06-13Norman, J E, Mackenzie, F, Owen, P, Mactier, H, Hanretty, K, Cooper, S, Calder, A, Mires, G, Danielian, P, Sturgiss, S, MacLennan, G, Tydeman, G, Thornton, S, Martin, B, Thornton, J G, Neilson, J P & Norrie, J 2009, 'Progesterone for the prevention of preterm birth in twin pregnancy (STOPPIT) : a randomised, double-blind, placebo-controlled study and meta-analysis', The Lancet, vol. 373, no. 9680, pp. 2034-2040. https://doi.org/10.1016/S0140-6736(09)60947-8ORCID: /0000-0002-1039-5646/work/98038626http://hdl.handle.net/2164/26447143589engadministration, intravaginaladolescentadultdelivery, obstetricdouble-blind methodfemalefetal deathfollow-up studiesgelsGreat Britainhumanslikelihood functionslinear modelslogistic modelsmiddle agedpatient selectionpregnancypregnancy outcomepregnancy, high-riskpregnancy, multiplepremature birthprogesteroneprogestinstreatment failuretwinsyoung adultRG Gynecology and obstetricsRGProgesterone for the prevention of preterm birth in twin pregnancy (STOPPIT) : a randomised, double-blind, placebo-controlled study and meta-analysisJournal article10.1016/S0140-6736(09)60947-83739680