Barbara N Arch1, Joanne Blair2, Andrew McKay3, John W Gregory4, Paul Newland5, Carrol Gamble3. 1. Department of Biostatistics, The University of Liverpool, Liverpool, L69 3BX, UK. bna@liverpool.ac.uk. 2. Alder Hey Children's NHS FT, East Prescott Road, Liverpool, L12 2AP, UK. 3. Department of Biostatistics, The University of Liverpool, Liverpool, L69 3BX, UK. 4. Professor in Paediatric Endocrinology & Honorary Consultant, Division of Population Medicine, School of Medicine, Cardiff University, Heath Park, Cardiff, CF14 4XN, UK. 5. Department of Biochemistry, Alder Hey Children's NHS FT, East Prescott Road, Liverpool, L122AP, UK.
The original publication [1] is missing one reference in the reference list. This reference should be also cited within the text. This error was caused during typesetting. The publisher apologizes to the readers for the inconvenience caused. The correct reference and citation can be found here:13. Martin Bland J, Altman D. Statistical methods for assessing agreement between two methods of clinical measurement. The Lancet. 1986. 327(8476):307-10. doi:10.1016/S0140-6736(86)90837-8.The Bland-Altman [13] analysis of agreement method was used to compare local and central measurements.