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To contact the ASH Customer Service by phone, please call 866-828-1231 (U.S. toll free) or 001-202-776-0544 (for International callers), Monday through Friday from 9:00 a.m. to 5:00 p.m. Eastern time.
Please note: ASH cannot answer specific medical questions, make referrals, or provide consultation. To find a blood specialist, please use our Find a Hematologist resource.