WESTERN STATES MEDICAL CENTER, a Nevada corporation; Women's International Pharmacy, a Wisconsin corporation; Health Pharmacy, a Wisconsin corporation; Apothecure, a Texas corporation; College Pharmacy, a Colorado corporation; Lakeside Pharmacy, a Tennessee corporation; Wedgewood Village Pharmacy, a New Jersey corporation, Plaintiffs-Appellees, v. Donna E. SHALALA, in her official capacity as Secretary, United States Department of Health and Human Services; Jane E. Henney, M.D., in her official capacity as Commissioner, Defendants-Appellants.