Deleu, D Long-term effects of nitrous oxide anaesthesia on laboratory and clinical parameters in elderly Omani patients: a randomized double-blind study. [electronic resource] - Journal of clinical pharmacy and therapeutics Aug 2000 - 271-7 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 0269-4727 Standard No.: 10.1046/j.1365-2710.2000.00287.x doi Subjects--Topical Terms: AgedAging--physiologyAnesthetics, Inhalation--administration & dosageDouble-Blind MethodFemaleFolic Acid--bloodHemoglobins--analysisHumansMaleMiddle AgedNitrous Oxide--administration & dosageOphthalmologic Surgical ProceduresVitamin B 12--blood