Keo, H.H., Spinedi, L., Staub, D., Diehm, N., Holtz, D., Broz, P. and Uthoff, H. 2019. Safety and efficacy of outpatient endovenous laser ablation in patients 75 years and older: a propensity score-matched analysis. Swiss Medical Weekly. 149, 2122 (Jun. 2019), w20083. DOI:https://doi.org/10.4414/smw.2019.20083.