Törnblom, Hans
Drossman, Douglas A.
Funding for this research was provided by:
University of Gothenburg
Article History
First Online: 5 November 2018
Compliance with Ethical Standards
:
: Hans Törnblom reports personal fees from Allergan, Shire, and Tillotts, outside the submitted work.Douglas A. Drossman declares no conflict of interest.
: This article does not contain any studies with human or animal subjects performed by any of the authors.