Labetalol Versus Nifedipine as Antihypertensive Treatment for Chronic Hypertension in Pregnancy: A Randomized Controlled Trial. - Webster, Louise M.; Myers, Jenny E.; Nelson-Piercy, Catherine; Harding, Kate; Cruickshank, J. Kennedy; Watt-Coote, Ingrid; Khalil, Asma; Wiesender, Cornelia; Seed, Paul T.; Chappell, Lucy C. (Hypertension (0194911X), 2017)