@article{article, title = {{Understanding the consequences of GP referral thresholds: taking the instrumental approach}}, publisher = {{BMJ}}, url = {{http://dx.doi.org/10.1136/bmjqs-2022-015557 }}, year = {{2023}}, month = {{1}}, author = {{Lewis J and Burton C}}, doi = {{10.1136/bmjqs-2022-015557}}, journal = {{BMJ Quality & Safety}}, note = {{Accessed on 2024/12/22}}}