References
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- Menees, T. O. and Robinson, H. C. (1925) Oral administration of sodium tetrabromphenolphthalein — a preliminary report. Am. J. Roentgenol., 13, p. 368.
- Newell, R. R. (1927) Roentgenographic estimation of concentration of tetraiodophenolphthalein in the gall bladder. Am. J. Roentgenol., 17, p. 443.
- Shehadi, W. H. and Briggs, R. (1940) Cholecystography: optimum voltage. Radiology, 34, p. 568.