Morison, D H Further considerations regarding the components of an effective test dose prior to epidural block. [electronic resource] - Anesthesiology Aug 1982 - 140-2 p. digital Publication Type: Letter ISSN: 0003-3022 Standard No.: 10.1097/00000542-198208000-00018 doi Subjects--Topical Terms: Anesthesia, Epidural--methodsAnesthetics, Local--administration & dosageHumansNerve Block--methods