1. HUMIRA® (adalimumab) injection, for subcutaneous use. Full prescribing information. North Chicago, IL: AbbVie Inc; 2019.
2. TREMFYA® (guselkumab) injection, for subcutaneous use. Full prescribing information. Horsham, PA: Janssen Biotech, Inc; 2019.
3. Enbrel® (etanercept) injection, for subcutaneous use. Full prescribing information. Thousand Oaks, CA: Amgen Inc; 2019.
4. Aimovig® (erenumab-aooe) injection, for subcutaneous use. Full prescribing information. Thousand Oaks, CA: Amgen Inc; Novartis Pharmaceuticals Corporation, East Hanover, NJ; 2019.
5. Assessment of self-injection experience in patients with rheumatoid arthritis: psychometric validation of the Self-Injection Assessment Questionnaire (SIAQ)