Position paper of the German Respiratory Society (DGP) on electronic cigarettes (E-cigarettes) in cooperation with the following scientific societies and organisations: BVKJ, BdP, DGAUM, DGG, DGIM, DGK, DKG, DGSMP, GPP - Nowak, D; Gohlke, H; Hering, T (Pneumologie, 2015)
et al.