Paul Adriaan Jan, Baron Janssen (12 September 1926 - 11 November 2003) was a Belgian-French physician. He was the founder of Janssen Pharmaceutica, a pharmaceuti...
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Paul Adriaan Jan, Baron Janssen (12 September 1926 - 11 November 2003) was a Belgian-French physician. He was the founder of Janssen Pharmaceutica, a pharmaceutical company with over 20,000 employees which is now a subsidiary of Johnson & Johnson.
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