doi.org/10.1016/S0741-5214(97)70146-0, hdl.handle.net/1765/59519
Journal of Vascular Surgery
Department of Surgery

Pierik, R., Toonder, I. M., van Urk, H., & Wittens, C. (1997). Validation of duplex ultrasonography in detecting competent and incompetent perforating veins in patients with venous ulceration of the lower leg. Journal of Vascular Surgery, 26(1), 49–52. doi:10.1016/S0741-5214(97)70146-0