- Correspondence to Dr Benjamin Nota, Department of Clinical Chemistry, VU University Medical Center, Metabolic Laboratory, PK 1-X-010, de Boelelaan 1117 Amsterdam 1081 HV, The Netherlands; or Gajja S Salomons;
- Received July 29, 2013
- Revised August 23, 2013
- Accepted August 26, 2013
- First published September 18, 2013.
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