Advanced Treatments Print Email Dr. Kutluk Oktay and his team have performed many key studies in the field of fertility. Solid clinical training, sound scientific understanding and experience all count. Dr. Oktay spent decades on clinical, surgical and laboratory research perfecting treatments for difficult-to-treat infertility conditions. We invented many new approaches to fertility preservation. We offer the most comprehensive and cutting edge techniques in fertility preservation from newborn to all ages of women in reproductive years.