[1
]
Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell
Medical Center, New York, New York.
[2
]
School of Medicine, George Washington University, Washington, D.C.
[3
]
Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell
Medical Center, New York, New York. Electronic address: icholst@med.cornell.edu.