Mental health in UK Biobank: development, implementation and results from an online questionnaire completed by 157 366 participants - RETRACTED.
Davis KAS., Coleman JRI., Adams M., Allen N., Breen G., Cullen B., Dickens C., Fox E., Graham N., Holliday J., Howard LM., John A., Lee W., McCabe R., McIntosh A., Pearsall R., Smith DJ., Sudlow C., Ward J., Zammit S., Hotopf M.