%0 Journal Article %T Efficacy of Progesterone Therapy in the Prevention of Preterm Labor in Women with Mixed Risk-factors: A Systematic Review and Meta-analysis of Randomized Clinical Trials %A Chaman-ara, K. %A Bahrami, M.A. %A Bahrami, E. %A Bahrami, S. %A Bahrami, M.N. %A Moosazadeh, M. %A Barati, O. %J Journal of Clinical Practice and Research %D 2016 %V 38 %P 48-52 %R 10.5152/etd.2016.0034