Antihypertensive drug effects on long-term blood pressure: an individual-level data meta-analysis of randomised clinical trials by Canoy, D, Copland, E, Nazarzadeh, M, Ramakrishnan, R, Pinho-Gomes, A-C, Salam, A, Dwyer, JP, Farzadfar, F, Sundström, J, Woodward, M, Davis, BR, Rahimi, K