Watanabe Dermatology Clinic is a dermatology clinic located near Shinjuku Station in Shinjuku Ward, Tokyo. The clinic offers specialized outpatient services by Dr. Harada, a chief professor at Tokyo Medical University Hospital's Department of Dermatology, with expertise in skin tumors, alopecia, nail and foot care, and athlete's foot. Dr. Harada's outpatient hours are on Monday afternoons (2nd, 4th, and 5th Mondays) and Saturday mornings (1st and 2nd Saturdays), with extensive experience in treating severe alopecia areata using Olumiant® and Litfulo®. The clinic has published clinical data on treatment outcomes for severe alopecia areata, showing that 43.7% of patients achieved less than 20% scalp hair loss after 9 months. The clinic provides English-speaking services and is fully accessible. Closed on Thursdays, Sundays, 4th Saturdays, holidays, as well as year-end and New Year holidays, Golden Week, and Obon period. They also prepare medical opinions required for municipal subsidy applications for alopecia areata treatment.