Telemetry of human electrocardiograms in aerial and aquatic environments. - Noboru Utsuyama; Hisao Yamaguchi; Shigeru Obara; Hiroyuki Tanaka; Seiichi Fukuta; Jun Nakahira; Shingo Tanabe; Eizo Bando; Hiroshi Miyamoto (IEEE Trans. Biomed. Eng., 1988)