Dr Rubin is professor of medicine at Temple University School of Medicine and chief of clinical hematology in the department of medicine at Temple University Hospital in Philadelphia.
RONALD N. RUBIN, MD—Series Editor
Dr...
<p>During the past 2 days, a 29-year-old woman has noted shortness of breath when walking and taking care of her 4-week-old daughter. She never experienced such symptoms previously.</p>
