@article{KoppitzEschenburgSalzmannetal.2016,
  author    = {Martin Koppitz and Charlotte Eschenburg and Emilia Salzmann and Martin Rosewich and Ralf Schubert and Stefan Zielen},
  title     = {Mucolytic effectiveness of tyloxapol in chronic obstructive pulmonary disease - a double-blind, randomized controlled trial},
  journal   = {PLoS One},
  volume    = {11},
  number    = {(6): e0156999},
  pages     = {1 -- 19},
  doi       = {10.1371/journal.pone.0156999},
  year      = {2016},
}