*BMJ Open* 2020; 10(4):e035947
*JAMA Network Open* 2020; 3(4):e203082
*Biometrical Journal* 2020; 62(6):1408-1427
*BMC Geriatrics* 2020; 20:113
*Neurology* 2020; 94(12):e1294-e1302
*Health Technology Assessment* 2020; 24(12)
*Clinical Trials* 2020;17(3):323-331