Genetic determinants of circulating haptoglobin concentration.

"Conflict of interest The authors declare no conflict of interest."

"Funding statement The UK Medical Research Council (MRC) and Wellcome Trust (Grant ref.: 102215/2/13/2) and the University of Bristol provide core support for ALSPAC. This publication is the work of the authors and TG, IG and NK are guarantors. A comprehensive list of grant funding is available on the ALSPAC website (http://www.bristol.ac.uk/alspac/external/documents/grant-acknowledgements.pdf). This research was funded by UK MRC grant MR/L01453X/1 (MM, IG) and by Cancer Research UK program grant C18281/A19169 (NK). Tom Gaunt receives funding from the UK MRC (MRC Integrative Epidemiology Unit, MC_UU_00011/4). ALSPAC GWAS data was generated by Sample Logistics and Genotyping Facilities at Wellcome Sanger Institute and LabCorp (Laboratory Corporation of America) using support from 23andMe. A comprehensive list of grant funding is available on the ALSPAC website (http://www.bristol.ac.uk/alspac/external/documents/grant-acknowledgements.pdf)."