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Voorn VMA, Marang-van de Mheen PJ, van der Hout A, So-Osman C, van den Akker-van Marle ME, Koopman-van Gemert AWMM, Dahan A, Vliet Vlieland TPM, Nelissen RGHH, van Bodegom-Vos L; LISBOA study group.Voorn VMA, et al.BMJ Open. 2017 Jul 20;7(7):e014143. doi: 10.1136/bmjopen-2016-014143.BMJ Open. 2017.PMID: 28729306Free PMC article.