TY - GEN AU - Ball,C G AU - Berry,F A TI - A defect in a self-administration anesthesia system SN - 0003-3022 PY - 1972///0703 KW - Anesthesia, Inhalation KW - adverse effects KW - Anesthesia, Obstetrical KW - Female KW - Humans KW - Inhalation KW - Pregnancy N1 - Publication Type: Journal Article UR - https://doi.org/10.1097/00000542-197205000-00020 ER -