CHANG, E A comparison of urinary Zimmermann chromogens by Girard fractionation and by Allen's method of correction. [electronic resource] - The Journal of clinical endocrinology and metabolism Jun 1955 - 767-70 p. digital Publication Type: Journal Article ISSN: 0021-972X Standard No.: 10.1210/jcem-15-6-767 doi Subjects--Topical Terms: Dose Fractionation, RadiationHumansNaphthalenesulfonatesSteroids--urineUrine