How often do anesthesiologists really check their monitors

Simon Ford, British Columbia Childrens' Hospital, Vancouver, BC, Canada; Simon Ford, British Columbia Childrens' Hospital; Elina Birmingham, Department of psychology, University of British Columbia, British; G Dumont, Department of Electrical and Computer Engineering; J Lim, British Columbia Childrens' hospital, British Columbia; J Daniels, British Columbia Children's Hospital, British Columbia; JM Ansermino, British Columbia Children's Hospital, British Columbia;