Fig. 1From: Effects of a single subanesthetic dose of esketamine on postoperative subthreshold depressive symptoms in patients undergoing unilateral modified radical mastectomy: a randomised, controlled, double-blind trialThe flowchart of patient participanting in the study. Seven patients were excluded due to refusal to participate, one was excluded because of esketamine contraindications. Group C, control group. Group E, esketamine groupBack to article page