Characterizing physician EHR use with vendor derived data: a feasibility study and cross-sectional analysis. - Edward R. Melnick; Shawn Y. Ong; Allan Fong; Vimig Socrates; Raj M. Ratwani; Bidisha Nath; Michael Simonov; Anup Salgia; Brian Williams; Daniel Marchalik; Richard Goldstein 003; Christine A. Sinsky (J. Am. Medical Informatics Assoc., 2021)