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Wang XL, Tam C, McCredie RM, Wilcken DE.Wang XL, et al. Among authors: mccredie rm.Aust N Z J Med. 1995 Aug;25(4):309-15. doi: 10.1111/j.1445-5994.1995.tb01895.x.Aust N Z J Med. 1995.PMID: 8540871