Note: The only correction in this table, as compared with the previous version, relates to plasma thrombopoietin levels. All other information is as per previously published. The entire table is provided here for completeness and ease of referral.
The plasma thrombopoietin (TPO) values and TPO assay reference interval that the authors were provided were incorrect. They apologize for not catching these errors before publication. Plasma TPO levels (determined with new samples and the same assay) are actually <31.3 pg/ml in QPD and most general population control samples. A new version of [Table 1], with the correct information, is included in this erratum. No other information in the authors' review requires correction.