McNulty, S E The effect of the prone position on venous pressure and blood loss during lumbar laminectomy. [electronic resource] - Journal of clinical anesthesia - 220-5 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 0952-8180 Standard No.: 10.1016/0952-8180(92)90070-h doi Subjects--Topical Terms: Blood Loss, SurgicalBlood Pressure--physiologyHumansLaminectomyLumbar Vertebrae--surgeryOrthopedic EquipmentProne Position--physiologyProspective StudiesRandom Allocation