title: Reply by the authors.
authors: Andrology, Royan Institute, Tehran, Islamic Republic of Iran.
authors: Marjan
authors: M
authors: Sabbaghian
authors: Andrology, Royan Institute, Tehran, Islamic Republic of Iran.
authors: Mohammad Ali
authors: MA
authors: Sadighi Gilani
mesh_terms: D006801:Humans; D007248:Infertility, Male; D007713:Klinefelter Syndrome; D008297:Male; D020554:Sperm Injections, Intracytoplasmic; D053625:Sperm Retrieval