- Correspondence to Dr Carla Oliveira, Universidade do Porto Instituto de Investigação e Inovação em Saúde, 4200-135 Porto, Portugal;
- Received June 12, 2019
- Revised January 24, 2020
- Accepted January 27, 2020
- First published February 17, 2020.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.