Unveiling the immune and vitamin profiles of blood: the potential biomarkers for alopecia areata 1Department of Dermatology, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, Fujian, China 2Engineering Research Center of Natural Cosmeceuticals College of Fujian Province, Xiamen Medical College, Xiamen, Fujian, China 3The First Hospital of China Medical University, Shenyang, Liaoning, China 4School of Public Health and Medical Technology, Xiamen Medical College, Xiamen, Fujian,...