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McLaren MI, Cooper C.McLaren MI, et al. Among authors: cooper c.Ann R Coll Surg Engl. 1989 Mar;71(2):77-8.Ann R Coll Surg Engl. 1989.PMID: 2705729Free PMC article.
Cooper C, Cawley M, Bhalla A, Egger P, Ring F, Morton L, Barker D.Cooper C, et al.J Bone Miner Res. 1995 Jun;10(6):940-7. doi: 10.1002/jbmr.5650100615.J Bone Miner Res. 1995.PMID: 7572318Free article.
Hillier S, Cooper C, Kellingray S, Russell G, Hughes H, Coggon D.Hillier S, et al. Among authors: cooper c.Lancet. 2000 Jan 22;355(9200):265-9. doi: 10.1016/S0140-6736(99)07161-5.Lancet. 2000.PMID: 10675073