AGBL5 and classic galactosemia: After 20 months of galactosemia, endothelial cell counts in Rp55−/− mice and Rp75−/− mice did not differ significantly from age-matched normal litter mates (90.6±6.3 versus 107±12.3 and 95.8+6.8 versus 96.6±7.2 (p>0.05).