TY - GEN AU - Nathanson,M TI - Medical gas cylinder expiry dates - a reply SN - 1365-2044 PY - 2018///1030 KW - Anesthesia KW - Anesthesiology KW - instrumentation KW - Equipment and Supplies KW - Time Factors N1 - Publication Type: Letter; Comment UR - https://doi.org/10.1111/anae.14154 ER -