- External sources of electromagnetic interference may possibly cause the machine to malfunction and have an effect on stimulation. Pediatric Use. The safety and performance of stimulation hasn't been set up for pediatric use. When in search of TCM products and services in Singapore, guaranteeing your TCM health practitioner is registered https://www.theorthopaedicandpainpractice.com/chronic-neck-and-shoulder-pain-relief-strategies-to-reduce-discomfort/