The Medical Science Liaison (MSL) at Eisai serves as a key representative of US Medical Affairs, focusing on engaging with healthcare providers and other external stakeholders to exchange scientific data and medical information. The MSL plays a crucial role in communicating Eisai's mission and products, providing insights from the field, and supporting the company's strategic direction in neurology and oncology. This position requires a strong background in medical or health sciences and involves significant interaction with key opinion leaders and decision-makers in the healthcare community.