In the Review by John B Hagan, Richard L Wasserman, Jeffrey S Baggish, Martin O Spycher, Melvin Berger, Vandana Shashi, Emanuel Lohrmann and Kathleen E Sullivan, ‘Safety of L-proline as a stabilizer for immunoglobulin products’, published in the February 2012 issue of Expert Review of Clinical Immunology (Expert Rev. Clin. Immunol. 8[2], 169–178 [2012]), on pages 168–170, the following sentence was incorrectly printed as:
“Normal serum proline levels vary by age: 3–10 years, 68–148 mmol/l; 6–18 years, 58–324 mmol/l; and >18 years, 102–336 mmol/l [6].”
The correct sentence should have been:
“Normal serum proline levels vary by age: 3–10 years, 68–148 µmol/l; 6–18 years, 58–324 µmol/l; and >18 years, 102–336 µmol/l [6].”
The authors and editors of Expert Review of Clinical Immunology would like to sincerely apologize for this oversight.