Biotin dependency due to a defect in biotin transport
J. Clin. Invest. Rebecca Mardach, et al. 109:1617 doi:10.1172/JCI13138 [Go to this article.]

Figure 2
Urinary excretion of biotin and biocytin during biotin withdrawal. (a) Ratio of biocytin to biotin and (b) biotin.