Presenter Full Program · Contributors · Organizations · Search Program · Flagged · Happening NowMore…Search ProgramFlaggedHappening NowJuan ChengMerck & CoBiographyJuan Cheng is an Prin. Scientist, Preclinical Dev. at Merck & CoPresentationsPoster PresentationMDD27 - Understanding the Relationship Between Nurses' Perceived Subjective Effort and Objective Neuromuscular Effort of Prefilled Syringes With Varying Injection Variables