Scientific article 1. FEB 2014 Direct and indirect economic and health consequences of COPD in Denmark a national register-based study: 1998-2010 Authors: Anders LøkkeOle HilbergPhilip TønnesenRikke IbsenJakob KjellbergPoul Jennum Authors Anders LøkkeOle HilbergPhilip TønnesenRikke IbsenJakob KjellbergPoul Jennum About this publication Published in BMJ Open