Hill CL, Zhang Y, Sigurgeirsson B, et al. «Frequency of specific cancer types in dermatomyositis and polymyositis: a population-based study». Lancet, 357, 9250, 1-2001, pàg. 96–100. DOI: 10.1016/S0140-6736(00)03540-6. PMID: 11197446.
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Hill CL, Zhang Y, Sigurgeirsson B, et al. «Frequency of specific cancer types in dermatomyositis and polymyositis: a population-based study». Lancet, 357, 9250, 1-2001, pàg. 96–100. DOI: 10.1016/S0140-6736(00)03540-6. PMID: 11197446.