Williams, B; Cockcroft, JR; Kario, K; Zappe, DH; Cardenas, P; Hester, A; Brunel, P; Williams, B; Cockcroft, JR; Kario, K; Zappe, DH; Cardenas, P; Hester, A; Brunel, P; Zhang, J; - view fewer (2014) Rationale and study design of the Prospective comparison of Angiotensin Receptor neprilysin inhibitor with Angiotensin receptor blocker MEasuring arterial sTiffness in the eldERly (PARAMETER) study. BMJ Open , 4 (2) , Article e004254. 10.1136/bmjopen-2013-004254.