title: Re: Analysis of internal jugular vein insufficiency: a comparison of two ultrasound methods.
authors.forename: A-Ching
authors.initials: AC
authors.lastname: Chao
authors.forename: Chih-Ping
authors.initials: CP
authors.lastname: Chung
authors.forename: Hung-Yi
authors.initials: HY
authors.lastname: Hsu
authors.forename: Han-Hwa
authors.initials: HH
authors.lastname: Hu
mesh_terms: D003287:Contrast Media; D006801:Humans; D007601:Jugular Veins / Q000000981:diagnostic imaging*; D018608:Ultrasonography, Doppler / Q000379:methods; D014689:Venous Insufficiency / Q000000981:diagnostic imaging*
chemical_list: D003287:Contrast Media