@article{article23d46840,
title   = {Phenotypic variation of a new PO mutation in genetically identical twins},
author = {Marques Júnior, Wilson and Hanna, Michael G. and Marques, Solana R. and Sweeney, Mary G. and Thomas, P. K. and Wood, Nicholas W.},
year = {1999},
doi = {10.1007/s004150050410},
journal   = {Journal of Neurology}
}