Spectral analysis of episodic rhythmic variations in the cutaneous electrogastrogram. - Jian D. Z. Chen; William R. Stewart Jr.; Richard W. McCallum (IEEE Trans. Biomed. Eng., 1993)

Measurement of electrical activity of the human small intestine using surface electrodes. - Jian D. Z. Chen; Bruce D. Schirmer; Richard W. McCallum (IEEE Trans. Biomed. Eng., 1993)

Noninvasive diagnosis of delayed gastric emptying from cutaneous electrogastrograms using neural networks. - Zhiyue Lin; Richard W. McCallum; Jian D. Z. Chen (ICNN, 1997)