Research output: Contribution to journal › Article
Rights statement: his 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, 615 KB, PDF document
Licence: Creative Commons: Attribution (CC-BY)
Original language | English |
---|---|
Journal | BMJ Open |
Volume | 9 |
Issue number | 9 |
Early online date | 4 Sep 2019 |
DOIs | |
Publication status | E-pub ahead of print - 4 Sep 2019 |
ID: 108623554