Fetus with a single umbilical artery Journal title: Medycyna Ogólna i Nauki o Zdrowiu Authors: Tomasz Gęca, Maciej Kwiatek, Arkadiusz Krzyżanowski, Anna Kwaśniewska Subject(s): Orthopedics, Health Care Sciences & Services, Medicine, Research & Experimental, Public, Environmental & Occupational Health, Primary Health Care