Toda K, Sato Y, Hara T, Hijiya K, Kaneko R, Okada T, Takatsu Y, Fujiwara H, Iwasaki T. Correlates of NT‐proBNP concentration in patients with essential hypertension in absence of congestive heart failure. Clinical Laboratory Analysis. 2010 Jan;24(1):12–6. doi: 10.1002/jcla.20366.