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Wolk A, Larsson SC, Johansson JE, Ekman P.Wolk A, et al. Among authors: larsson sc.JAMA. 2006 Sep 20;296(11):1371-6. doi: 10.1001/jama.296.11.1371.JAMA. 2006.PMID: 16985229
Larsson SC, Wallin A, Wolk A, Markus HS.Larsson SC, et al.BMC Med. 2016 Nov 24;14(1):178. doi: 10.1186/s12916-016-0721-4.BMC Med. 2016.PMID: 27881167Free PMC article.Review.