An entry-level medical science liaison (MSL) works for a medical device, pharmaceutical, biotechnology, or other healthcare company. They advise and educate the company about new scientific advances in their industry. Your duties as an MSL include making connections with researchers and research organizations, physicians, and scientists. You learn about clinical trials, new therapy techniques, and other advances. You may also ensure that medical providers use new products correctly and effectively. The responsibilities of an entry-level medical science liaison usually focus on a specific area, such as one disease or one medical specialty.