CD8A and lichen planus: Hwang Hwang AS AS Kechter Kechter JA JA Do Do TH TH Hughes Hughes AN AN Zhang Zhang N N Li Li X X Rapid response of lichen planus to baricitinib associated with suppression of cytotoxic CXCL13+CD8+ T cells Rapid response of lichen planus to baricitinib associated with suppression of cytotoxic CXCL13+CD8+ T cells J Clin Invest J Clin Invest 2024 2024 135 135 2 2 e179436 e179436 supplied-pmid 39541169?