Text and Data Mining valid from 2019-12-01
Received: 18 June 2019
Accepted: 11 December 2019
First Online: 21 December 2019
: The study was funded by British American Tobacco (BAT). At the time of the study JH, and GE were employees of BAT. Matthias Bente von Frowein is an employee of Photonion GmbH, and the supplier of the mass spectrometer for the LM2X-TOFMS.