2.3. Participant recruitment and randomization
SYNDROME, YANG DEFICIENCY
Five physicians (Wen-Bin Li and 4 other dermatologists) with competence in dermatology recruited patients aged 18 to 70 years between 2019 and 2021 from a single outpatient dermatology clinic, where their PASI and Yang deficiency syndrome scores (YDSS) were examined (Supplementary File 2, 