1. Sinusoidal pressure generator for testing differential manometers;Ball;Med. Electron. Biol. Eng.,1963
2. Low compliance pressure gauge;Bloch,1966
3. Physiologic recording by modern instruments with particular reference to pressure recording;Fry;Physiol. Rev.,1960
4. An evaluation of modern pressure recording systems;Fry;Circ. Res.,1957
5. Measurement of left ventricular pressure and its first time derivative;Gabe;J. Physiol.,1970