Targeted disruption of the mouse sphingolipid activator protein gene: a complex phenotype, including severe leukodystrophy and wide-spread storage of multiple sphingolipids. - Fujita,N.; Suzuki,K.; Vanier,M.T.; Popko,B.; Maeda,N.; Klein,A.; Henseler,M.; Sandhoff,K.; Nakayasu,H.; Suzuki,K. (Hum Mol Genet, 1996)