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Letter response
Response to: ‘Impact of gender on outcomes in ankylosing spondylitis’ by Feldtkeller et al

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  • Funding Editorial support was provided by Stephanie Eide of Engage Scientific Solutions and was funded by Pfizer Inc.

  • Competing interests IvdH-B is an investigator for clinical trials sponsored by Pfizer Inc. DZ is a former employee of Amgen. AS is an employee of Inventiv Health Inc who is a paid contractor to Pfizer Inc. AK is an employee of Pfizer.

  • Patient consent Obtained.

  • Ethics approval IRB (local sites for global study).

  • Provenance and peer review Commissioned; internally peer reviewed.

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