—We appreciate Dr Small's letter regarding our recent publication. Our incorrect use of the deficient enzyme in primary hyperoxaluria type 1 was according to the text.1 But, as Dr Small indicates, Danpure et al had already established the different deficient enzymes in primary hyperoxaluria type 1.2,3 We are grateful to Dr Small for bringing this to our attention.
Sakamoto T, Inomata H. Enzyme Deficiency for Type 1 Primary Hyperoxaluria-Reply. Arch Ophthalmol. 1992;110(1):13. doi:10.1001/archopht.1992.01080130015006