Minimal local anaesthetic volumes for sciatic nerve block: evaluation of ED 99 in volunteers. - Latzke D; Marhofer P; Zeitlinger M; Machata A; Neumann F; Lackner E; Kettner SC; Latzke, D; Marhofer, P; Zeitlinger, M; Machata, A; Neumann, F; et al. (BJA: The British Journal of Anaesthesia, 2010)