Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
BREEN TW,Epidural anesthesia for labor in an ambulatory patient,Anesth Analg,,,1993,77,,919-924,https://cir.nii.ac.jp/crid/1570572701363788672,https://doi.org/10.1213/00000539-199311000-00008