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Cheng JC, Guo X.Cheng JC, et al. Among authors: guo x.Spine (Phila Pa 1976). 1997 Aug 1;22(15):1716-21. doi: 10.1097/00007632-199708010-00006.Spine (Phila Pa 1976). 1997.PMID: 9259781
Cheng JC, Qin L, Cheung CS, Sher AH, Lee KM, Ng SW, Guo X.Cheng JC, et al. Among authors: guo x.J Bone Miner Res. 2000 Aug;15(8):1587-95. doi: 10.1359/jbmr.2000.15.8.1587.J Bone Miner Res. 2000.PMID: 10934658Free article.
Cheng JC, Sher HL, Guo X, Hung VW, Cheung AY.Cheng JC, et al. Among authors: guo x.Hong Kong Med J. 2001 Sep;7(3):241-5.Hong Kong Med J. 2001.PMID: 11590264Free article.