Infertility is not uncommon. According to the Centers for Disease Control, 12% of women between the ages of 14 and 44 have used infertility services. We're going to explore the topic of infertility -- a sensitive subject with some long held stigma. To cover infertility basics, Dr. Zaraq Khan of the Mayo Clinic is with us. Khan is a gynecologist working with those seeking treatment for infertility on a regular basis. He reevaluates the definition of infertility and provides insight on some causes