Preventing leg amputations in critical limb ischemia with below-the-knee drug-eluting stents: the PaRADISE (PReventing Amputations using Drug eluting StEnts) trial - Feiring, A J; Krahn, M; Nelson, L; Wesolowski, A; Eastwood, D; Szabo, A (J Am Coll Cardiol, 2010)