sentences:  For treatment-resistant major depressive disorder, HF-rTMS of the left dorsolateral prefrontal cortex (DLPFC) appears effective and low-frequency (LF) rTMS of the right DLPFC has probable efficacy.TMS can also be used to map functional connectivity between the cerebellum and other areas of the brain.Mimicking the physical discomfort of rTMS with placebo to discern its true effect is a challenging issue in research.