以岭药业：公司的主营业务是专利创新中药的研发、生产和销售

Core Viewpoint - Yiling Pharmaceutical focuses on the research, production, and sales of patented innovative traditional Chinese medicine while actively expanding into biopharmaceuticals and the health industry, creating a synergistic development model in the pharmaceutical health sector [2] Group 1: Business Overview - The company's main business involves the research, production, and sales of patented innovative traditional Chinese medicine [2] - Yiling Pharmaceutical is also developing biopharmaceuticals and health industry initiatives, aiming for a collaborative growth model [2] Group 2: Product Development - The company has disclosed detailed information regarding its products under research in its periodic reports [2]