Funding for this research was provided by:
National Centre for Smoking Cessation and Training (n/a)
Received: 8 September 2019
Accepted: 15 June 2020
First Online: 24 June 2020
Ethics approval and consent to participate
: This study was approved by the local research ethics board at the Regional Health Authorities of Crete (Protocol Number: 13683 / 09–08-17).All participating providers and patients signed an information sheet and consent form.
: Not applicable.
: AM is Executive Director of the NCSCT which has developed the VBA intervention. All other authors declare that they have no competing interests. SP is an Associate Editor and CL is a Section Editor for BMC Family Practice.