Considerations and methods for placebo controls in surgical trials (ASPIRE guidelines) by Beard, DJ, Campbell, MK, Blazeby, JM, Carr, AJ, Weijer, C, Cuthbertson, BH, Buchbinder, R, Pinkney, T, Bishop, FL, Pugh, J, Cousins, S, Harris, IA, Lohmander, LS, Blencowe, N, Gillies, K, Probst, P, Brennan, C, Cook, A, Farrar-Hockley, D, Savulescu, J, Huxtable, R, Rangan, A, Tracey, I, Brocklehurst, P, Ferreira, ML, Nicholl, J, Reeves, BC, Hamdy, F, Rowley, SCS, Cook, JA

Placebo comparator group selection and use in surgical trials: the ASPIRE project including expert workshop by Beard, DJ, Campbell, MK, Blazeby, JM, Carr, AJ, Weijer, C, Cuthbertson, BH, Buchbinder, R, Pinkney, T, Bishop, FL, Pugh, J, Cousins, S, Harris, I, Lohmander, LS, Blencowe, N, Gillies, K, Probst, P, Brennan, C, Cook, A, Farrar-Hockley, D, Savulescu, J, Huxtable, R, Rangan, A, Tracey, I, Brocklehurst, P, Ferreria, ML, Nicholl, J, Reeves, BC, Hamdy, F, Rowley, SCS, Lee, N, Cook, JA