8Charbon HG,Livingstone HM.Planning a recovery room for adequate postoperative care[J].Hospitols,1949,23:35-38.
9Waddle JP. Evers AS,Piccirillo JF. Postanesthesia care unit length of stay : Quantifying and assessing dependent factors. Anesth Analg, 1998,87:628-633.
10Charbon HG,Livingstone HM. Planning a recovery room for adequate postoperative care. Hospitols, 1949,23:35-38.