19 citations
,
  February 2016   in “Journal of The American Academy of Dermatology”    CD3+ T-cell presence is a reliable marker to tell apart alopecia areata from pattern hair loss.  
               12 citations
,
  April 2017   in “Experimental and Therapeutic Medicine”    Patients with severe active alopecia areata have lower CD200 expression and an imbalance in their immune system.  
     
           10 citations
,
  April 2013   in “Veterinary dermatology”    A new skin disease in four Labrador retrievers responded well to immunosuppressive treatment.  
     
           5 citations
,
  January 2019   in “Skin appendage disorders”    The conclusion is that it's important to tell apart alopecia areata from lipedematous alopecia for proper treatment, as alopecia areata can be reversed.  
     
           3 citations
,
  May 2018   in “Journal of Cosmetic Dermatology”    Biopsy can differentiate between alopecia areata and androgenic alopecia, and if more information is needed, testing for CD3 and CD8 can help.