Has anything you are citing been retracted, withdrawn, or given an expression of concern? (Tools: Retraction Watch database (free); Zotero citation manager (free); Endnote citation manager (online version free); Papers citation manager)

Articles mentioned:

• Science cannot ignore the impact of retracted papers | Opinion (Chemistry World)
  
• Retracted: The Safety of COVID=19 vaccinations (Vaccine)
• Huge study supporting ivermectin as Covid treatment withdrawn over ethical concerns (Guardian)
• Retracted autism study an 'elaborate fraud,' British journal finds (CNN)
• Retracted: High-dose ω-3 Fatty Acid Plus Vitamin D3 Supplementation Affects Clinical Symptoms and Metabolic Status of Patients with Multiple Sclerosis: A Randomized Controlled Clinical Trial (Journal of Nutrition)