Development of Computable Phenotype to Identify and Characterize Transitions in Acuity Status in Intensive Care Unit. - Yuanfang Ren; Tyler J. Loftus; Rahul Sai Kasula; Prudhvee Narasimha Sadha; Parisa Rashidi; Azra Bihorac; Tezcan Ozrazgat-Baslanti (CoRR, 2020)