Isoenzymes of sphingomyelinase and the genetic defect in Niemann-Pick disease, type CJohn W. Callahan, Jacqualine Gerrie, Markus Khalil|Biochemical and Biophysical Research Communications|1974Cited by 66
Sphingomyelinases in Human Tissues. II. Absence of a Specific Enzyme from Liver and Brain of Niemann-Pick Disease, Type CJohn W. Callahan, Michel Philippart, Markus Khalil|Pediatric Research|1975Cited by 60