Questionnaire(s): The Structured Awareness Screening Interview shall be used to detect awareness during the anesthetic period which can be an adverse event related to underdosing/reduced sensitivity to propofol effects (24). This questionnaire has been used to detect awareness and perioperative behavioral studies for children age 5 and older (25). The same questions will be used for all children. No incentives will be given for the children to answer, and no leading questions will be asked during the screening interview.