Therapeutic options for neurocardiogenic syncope: a meta-analysis of randomised trials with and without blinding oleh Darrel P Francis, James Howard, Matthew J Shun-Shin, Ahran Arnold, Phang Boon Lim, Alexandra Nowbar, Bradley Porter, Philip Eardley, Zachary I Whinnett, Daniel Keene, Melanie Dani, Monika Johal, Michela Sorbini, Nandita Kaza, Zhuang Liu, Shuli Levy, Patricia Taraborelli, Mohamed Zuhair