1.參考文獻:Nicholas S. Reed, AuD1; Joshua Betz, MS2; Nicole Kendig, AuD3; et al, Personal Sound Amplification Products vs a Conventional Hearing Aid for Speech Understanding in Noise, JAMA, 4 July 2017 ; JAMA. 2017;318(1):89-90. doi:10.1001/jama.2017.6905