Campagnolo, Maria Thereza, André de Queiroz Pereira da Silva, Márcio Luís Duarte, Lucas Ribeiro dos Santos, and Márcio Alves Urzeda. 2022. “DUPLICITY OF THE FEMORAL VEIN AS A RISK FACTOR FOR DEEP VENOUS THROMBOSIS - DIAGNOSIS BY ULTRASONOGRAPHY”. Portuguese Journal of Cardiac Thoracic and Vascular Surgery 28 (4). Lisbon, Portugal:63-65. https://doi.org/10.48729/pjctvs.228.