Authors: Persijn J Honkoop; Rik J B Loymans; Evelien H Termeer; Jiska B Snoeck-Stroband; Moira J Bakker; Willem J J Assendelft; Peter J Sterk; Gerben Ter Riet; Tjard R J Schermer; Jacob K Sont Journal: BMC Pulm Med Date: 2011-11-24 Impact factor: 3.317