[1] Cleveland Clin, Ctr Reprod Med, Cleveland, OH 44106 USA
[2] Ben Gurion Univ Negev, Soroka Med Ctr, Soroka Med Ctr, Fertil & IVF Unit, Beer Sheva, Israel
[3] Ravenshaw Univ, Sch Life Sci, Redox Biol Lab, Cuttack, Orissa, India
[4] Univ Stellenbosch, Tygerberg, South Africa
[5] Univ Hlth Sci, Physiol & Cell Biol, Lahore, Pakistan
[6] Cleveland Clin, Cleveland, OH 44106 USA