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Duval, Sue; Keo, Hong H; Oldenburg, Niki C; Baumgartner, Iris; Jaff, Michael R; Peacock, James M; Tretinyak, Alexander S; Henry, Timothy D; Luepker, Russell V; Hirsch, Alan T (2014). The impact of prolonged lower limb ischemia on amputation, mortality, and functional status: the FRIENDS registry. American Heart Journal, 168(4), pp. 577-587. Elsevier 10.1016/j.ahj.2014.06.013
Keo, Hong H; Duval, Sue; Baumgartner, Iris; Oldenburg, Niki C; Jaff, Michael R; Goldman, JoAnne; Peacock, James M; Tretinyak, Alexander S; Henry, Timothy D; Luepker, Russell V; Hirsch, Alan T (2013). The FReedom from Ischemic Events-New Dimensions for Survival (FRIENDS) registry: design of a prospective cohort study of patients with advanced peripheral artery disease. BMC cardiovascular disorders, 13(120), p. 120. BioMed Central 10.1186/1471-2261-13-120
