TY - GEN AU - Geeseman,R AU - Wade,M G TI - A heart rate telemetry system to study activity of children during free play SN - 0034-5377 PY - 1972///0608 KW - Analog-Digital Conversion KW - Child KW - Electrodes KW - Heart Function Tests KW - instrumentation KW - Heart Rate KW - Humans KW - Methods KW - Online Systems KW - Play and Playthings N1 - Publication Type: Journal Article ER -