Gonçalves Pereira, Rita, José Tiago, Gonçalo Cabral, Tiago Costa, Gimenez Rossello, and Diogo Cunha e Sá. 2021. “RECURRENT VARICOSE VEINS FOLLOWING SMALL SAPHENOUS VEIN SURGERY: A 5-YEAR FOLLOW-UP DUPLEX ULTRASOUND STUDY”. Portuguese Journal of Cardiac Thoracic and Vascular Surgery 28 (3). Lisbon, Portugal:39-46. https://doi.org/10.48729/pjctvs.193.