Low frequency-pulsed electromagnetic fields promote bone healing:
a Meta-analysis
Zhao Xin-juan1, Zhang Jing2, Yin Bo2, Kang Yi-ting2
Chinese Journal of Tissue Engineering Research . 2017, (32): 5234 -5239 .  DOI: 10.3969/j.issn.2095-4344.2017.32.025