Dovancescu S, Saczynski JS, Darling CE, Riistama J, Sert Kuniyoshi F, Meyer T, Goldberg R, McManus DD. Detecting Heart Failure Decompensation by Measuring Transthoracic Bioimpedance in the Outpatient Setting: Rationale and Design of the SENTINEL-HF Study. JMIR Res Protoc. 2015 Oct 09; 4(4):e121.