The performance of preference-based instrumental variables to emulate a randomised clinical trial of comparative medical device effectiveness
Prats-Uribe A., Berencsi K., CARR A., Judge A., SILMAN A., MURRAY D., ARDEN N., Petersen I., BEARD D., Wilkinson JM., Douglas I., Valderas JM., LAMB S., STRAUSS V., PRIETO ALHAMBRA D.