Research output: Contribution to journal › Article › peer-review
Rights statement: This is an open access article distributed in accordance with the Creative Commons Attribution 4.0 Unported (CC BY 4.0) license, which permits others to copy, redistribute, remix, transform and build upon this work for any purpose, provided the original work is properly cited, a link to the licence is given, and indication of whether changes were made. See: https://creativecommons.org/licenses/by/4.0/.
Final published version, 297 KB, PDF document
Licence: Creative Commons: Attribution (CC-BY)
Original language | English |
---|---|
Journal | BMJ Open |
DOIs | |
Publication status | Published - 4 Mar 2020 |
ID: 134714072