Polycystic ovary syndrome (PCOS) affects as many as five million women in the United States. This common hormonal condition occurs when small, fluid-filled sacs — called cysts — form on the ovaries.

Until recently, people aged 70 and older diagnosed with leukemia and other blood cancers were often considered ineligible for a stem cell transplant.

For 20 years, Heather Bucalos has worked as a nurse in specialty areas that include high-risk obstetrics, student health and orthopedics.