Nitric oxide in cardiac surgery: a meta-analysis of randomized controlled trials - Sardo, Salvatore; Osawa, Eduardo Atsushi; Finco, Gabriele; Galas, Filomena Regina Barbosa Gomes; Almeida, Juliano Pinheiro de; Cutuli, Salvatore Lucio; Frassanito, Claudia; Landoni, Giovanni; Hajjar, Ludhmila Abrahao (Journal of cardiothoracic and vascular anesthesia, 2018)