亿帆医药：亿立舒美国市场上量需要一个产品导入期

Group 1 - The core viewpoint of the article indicates that Yifan Pharmaceutical acknowledges the need for a product introduction period for its Yilishu product in the U.S. market [2] - The company's business performance in the first three quarters has been negatively impacted by a significant year-on-year decline in revenue from certain cold-related, centralized procurement pharmaceutical products, and vitamin businesses [2]