Absence of mitochondrial progesterone receptor polymorphisms in women with spontaneous preterm birth

Tracy A. Manuck, Thomas M. Price, Elizabeth Thom, Paul J. Meis, Mitchell P. Dombrowski, Baha Sibai, Catherine Y. Spong, Dwight J. Rouse, Jay D. Iams, Hyagriv N. Simhan, Mary J. O'Sullivan, Menachem Miodovnik, Kenneth J. Leveno, Deborah Conway, Ronald J. Wapner, Marshall Carpenter, Brian Mercer, Susan M. Ramin, John M. Thorp, Alan M. Peaceman