Erythrocyte GTP Depletion Associated with Severe Muscular Hypotonia in Three Inherited Disorders of Future Metabolism

1Purine Laboratory, Guy's Hospital, London SE Royal Manchester Children's Hospital, Pendlebury, M27 1MA, and Hospital For Sick Children, Great Ormond Street, London WC1.

1Purine Laboratory, Guy's Hospital, London SE Royal Manchester Children's Hospital, Pendlebury, M27 1MA, and Hospital For Sick Children, Great Ormond Street, London WC1.

1Purine Laboratory, Guy's Hospital, London SE Royal Manchester Children's Hospital, Pendlebury, M27 1MA, and Hospital For Sick Children, Great Ormond Street, London WC1.

1Purine Laboratory, Guy's Hospital, London SE Royal Manchester Children's Hospital, Pendlebury, M27 1MA, and Hospital For Sick Children, Great Ormond Street, London WC1.

1Purine Laboratory, Guy's Hospital, London SE Royal Manchester Children's Hospital, Pendlebury, M27 1MA, and Hospital For Sick Children, Great Ormond Street, London WC1.