Waldron, D. J., Kumar, D., Hallan, R. I., Wingate, D. L., & Williams, N. S. (1990). Evidence for motor neuropathy and reduced filling of the rectum in chronic intractable constipation.

Waldron, D J., D. Kumar, R I. Hallan, D L. Wingate, and N S. Williams. Evidence for Motor Neuropathy and Reduced Filling of the Rectum in Chronic Intractable Constipation. 1990.

Waldron, D J., et al. Evidence for Motor Neuropathy and Reduced Filling of the Rectum in Chronic Intractable Constipation. 1990.