The goal of this randomized trial is to examine the effectiveness of a Provider Tailored Intervention for Perioperative Stress (P-TIPS) in preventing high anxiety and improving the recovery process in children undergoing surgery. Four hospitals and all Healthcare Providers (HCP) in it will be randomized to either a P-TIPS Group, who will receive the newly developed intervention, or a Control Group who will receive a 2-hour seminar on the management of preoperative anxiety and postoperative pain and otherwise will provide standard care. The aims of this study are to: