Fig. 2From: The place of S-ketamine in fibromyalgia treatment (ESKEFIB): study protocol for a prospective, single-center, double-blind, randomized, parallel-group, dose-escalation controlled trialTreatment preparation steps. ⏏, laminar flow hood; S-ket, S-ketamine; N°, recognition number; MgSO4, magnesium sulfate; Clo, clonidine; IMD, Investigational Medication Drug; NIMD, non-investigational medication drugBack to article page