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Diakses 15 Maret 2020WebMD. https://www.webmd.com/brain/understanding-bells-palsy-basics
Diakses 15 Maret 2020Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/bells-palsy/symptoms-causes/syc-20370028
Diakses 15 Maret 2020