Midluteal progesterone: A marker of treatment outcomes in couples with unexplained infertility

Karl R. Hansen, Esther Eisenberg, Valerie Baker, Micah J. Hill, Sixia Chen, Sara Talken, Michael Peter Diamond, Richard S. Legro, Christos Coutifaris, Ruben Alvero, Randal D. Robinson, Peter Casson, Gregory M. Christman, Nanette Santoro, Heping Zhang, Robert A. Wild