@article{articled5158d90,
title   = {Genetic and environmental components of serum creatine kinase (ck) and pyruvate kinase (pk) in normal twins: implication for genetic risks estimates in duchenne muscular dystrophy carries},
author = {Rapaport, D and Colletto, G M D and Zatz, Mayana},
year = {1988},
doi = {10.1002/ajmg.1320310206},
journal   = {American Journal of Medical Genetics}
}