[1
]
Department of Obstetrics and Gynecology, University of California, Los Angeles, Los
Angeles, CA, USA.
[2
]
Division of Reproductive Endocrinology and Infertility in the Department of Obstetrics
and Gynecology, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
[3
]
University of California, Los Angeles, Los Angeles, CA, USA.
[4
]
Division of Maternal Fetal Medicine in the Department of Obstetrics and Gynecology,
Cedars-Sinai Medical Center, Los Angeles, CA, USA.