International medical science liaison day 2021This day is on March 27th, recognizes the vital role Medical Science Liaisons (MSL) play in the success of a company.Since being first established by Upjohn Pharmaceuticals in 1967, MSLs have become increasingly important to the companies’ success that employs them. According to the MSL Society website, “Today, MSLs are scientific experts to internal colleagues at their companies;you can observe this day by sharing your professional and story of how you entered in MSL etc .