Operating room briefings: working on the same page - Makary, M A; Holzmueller, C G; Thompson, D; Rowen, L; Heitmiller, E S; Maley, W R; Black, J H; Stegner, K; Freischlag, J A; Ulatowski, J A; Pronovost, P J (Jt Comm J Qual Patient Saf, 2006)