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Risto O, Hammar E, Hammar K, Fredrikson M, Hammar M, Wahlström O.Risto O, et al.Aging Male. 2012 Mar;15(1):59-62. doi: 10.3109/13685538.2011.593659.Aging Male. 2012.PMID: 22303889Free article.
Wahlström O, Risto O, Djerf K, Hammerby S.Wahlström O, et al. Among authors: risto o.Acta Orthop Scand. 1991 Oct;62(5):419-21. doi: 10.3109/17453679108996636.Acta Orthop Scand. 1991.PMID: 1950483Clinical Trial.
Risto O, Wahlström O, Abdiu A, Walz T.Risto O, et al.Acta Orthop Scand. 1991 Feb;62(1):49-51. doi: 10.3109/17453679108993090.Acta Orthop Scand. 1991.PMID: 2003386
Johansson T, Risto O, Knutsson A, Wahlström O.Johansson T, et al. Among authors: risto o.Int Orthop. 2001;25(4):223-5. doi: 10.1007/s002640100263.Int Orthop. 2001.PMID: 11561495Free PMC article.Clinical Trial.
Liu Y, Kalén A, Risto O, Wahlström O.Liu Y, et al. Among authors: risto o.Wound Repair Regen. 2002 Sep-Oct;10(5):336-40. doi: 10.1046/j.1524-475x.2002.10510.x.Wound Repair Regen. 2002.PMID: 12406171
Liu Y, Kalén A, Risto O, Wahlström O.Liu Y, et al. Among authors: risto o.Platelets. 2003 Jun;14(4):233-7. doi: 10.1080/0953710031000118876.Platelets. 2003.PMID: 12850832Free article.
Timpka T, Risto O, Borg K, Johansson J.Timpka T, et al. Among authors: risto o.Scand J Med Sci Sports. 2007 Dec;17(6):636-40. doi: 10.1111/j.1600-0838.2006.00623.x. Epub 2007 Mar 1.Scand J Med Sci Sports. 2007.PMID: 17331084
Risto O, Timpka T.Risto O, et al.Int J Inj Contr Saf Promot. 2007 Sep;14(3):189-91. doi: 10.1080/17457300701429009.Int J Inj Contr Saf Promot. 2007.PMID: 17729138No abstract available.