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Job Search, Career Development, and Professional & Personal Fulfillment Resources for Medical Affairs

What is a Medical Science Liaison (MSL)? The 2025 Career Guide career guide Aug 08, 2025

By Patrina Pellett & Sarah Snyder

(Updated annually to keep you ahead in the field)

You’ve probably heard the title before: Medical Science Liaison.

Sometimes it’s whispered like it’s a secret club in pharma. Other times, it’s confused with sales. And if you’ve tried explaining the role to

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