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THE AUTHORS REPLY.
Held U, Kessels A, Garcia Aymerich J, Basagaña X, Ter Riet G, Moons KGM, Puhan MA; International COPD Cohorts Collaboration Working Group. Held U, et al. Am J Epidemiol. 2017 Mar 1;185(5):406. doi: 10.1093/aje/kwx010. Am J Epidemiol. 2017. PMID: 28174832 No abstract available.
Large-scale international validation of the ADO index in subjects with COPD: an individual subject data analysis of 10 cohorts.
Puhan MA, Hansel NN, Sobradillo P, Enright P, Lange P, Hickson D, Menezes AM, ter Riet G, Held U, Domingo-Salvany A, Mosenifar Z, Antó JM, Moons KG, Kessels A, Garcia-Aymerich J; International COPD Cohorts Collaboration Working Group. Puhan MA, et al. BMJ Open. 2012 Dec 12;2(6):e002152. doi: 10.1136/bmjopen-2012-002152. Print 2012. BMJ Open. 2012. PMID: 23242246 Free PMC article.
Methods for Handling Missing Variables in Risk Prediction Models.
Held U, Kessels A, Garcia Aymerich J, Basagaña X, Ter Riet G, Moons KG, Puhan MA; International COPD Cohorts Collaboration Working Group. Held U, et al. Am J Epidemiol. 2016 Oct 1;184(7):545-551. doi: 10.1093/aje/kwv346. Epub 2016 Sep 14. Am J Epidemiol. 2016. PMID: 27630143 Free article.