John Lena is currently a Senior Specialist in Global Safety & The Environment at Merck. They previously worked as a Scientist at Merck from 2009 to 2019 and held the position of Scientist I at Schering-Plough Research Institute from 2007 to 2009. Prior to that, John served as an Analytical Scientist at GlaxoSmithKline Consumer Healthcare R&D from 2000 to 2006 and began their career as a GC Analyst at Severn Trent Labs from 1996 to 2000.
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