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Rankin AC, Oldroyd KG, Chong E, Rae AP, Cobbe SM.Rankin AC, et al. Among authors: oldroyd kg.Br Heart J. 1989 Sep;62(3):195-203. doi: 10.1136/hrt.62.3.195.Br Heart J. 1989.PMID: 2789911Free PMC article.