Anja S. Frost, MD

Joseph Marine, MD, MBA, FACC, FHRS, is a clinical cardiac electrophysiologist who practices primarily at the Johns Hopkins Hospital in Baltimore, Maryland. He is a Professor of Medicine at the Johns Hopkins University School of Medicine and holds appointments as Vice-Director of Operations for the Division of Cardiology and Section Chief of Cardiology for Johns Hopkins Community Physicians. He trained at UC San Francisco Medical School, Brigham and Women’s Hospital/Harvard Medical School, Boston University Medical Center, and Beth Israel Deaconess Medical Center.Dr. Marine has lectured widely on a variety of arrhythmia topics and has served as a co-director of the American College of Cardiology (ACC) Cardiovascular Overview and Board Review Course for 10 years. He currently serves on the ACC Board of Governors and is co-editor of the ACC/HRS EP Self-Assessment Program. He also serves on other committees for the ACC, the Heart Rhythm Society, and MedChi. He is co-author of more than 130 original research and review articles and has served on writing committees for several national cardiology practice and training guidelines.As a clinical cardiac electrophysiologist, Dr. Marine specializes in the diagnosis and treatment of arrhythmias, which are heart rhythm disorders that cause the heart to beat too rapidly, too slowly, or irregularly. His research focuses on further improving the safety and effectiveness of catheter ablation and other treatments for atrial fibrillation and other atrial and ventricular arrhythmias.

Katherine Cameron is a reproductive endocrinology and infertility specialist in the Baltimore area who specializes in diagnosing and treating women facing infertility. Dr. Cameron treats patients with a wide range of conditions, including recurrent pregnancy loss, polycystic ovarian syndrome, premature ovarian insufficiency and medical endocrinology syndromes, at the Johns Hopkins Fertility Center.Dr. Cameron completed her undergraduate degree at Washington University in St. Louis and her medical school, residency and fellowship training at the University of Pennsylvania. Her research has focused on fertility and quality of life issues for cancer survivors. She has also investigated how exposure to certain environmental factors in the womb — such as if a mother smoked or took certain medications while pregnant — affects a woman’s future reproductive health. In addition to her medical degree, Dr. Cameron holds a master’s degree in bioethics and serves on the American Society for Reproductive Medicine Ethics Committee.Outside of medicine, Dr. Cameron enjoys spending time outdoors, including hiking, skiing and playing tennis.