Some of the results [Hamilton Depression Rating (HDR) score, Edinburgh Postnatal Depression Scale (EPDS), postpartum depression screening scale (PDSS), Patient Health Questionnaire-9, VAS score, and BDNF] were collected into histograms to identify differing trends between (R,S)-ketamine and saline treatments (Figures 8, 9). This evidence concerns the gene BDNF and depressive symptom measurement.