A research paper is published in PLOS ONE April 8, 2018 mssong Baek, H., Cho, M., Kim, S., Hwang, H., Song, M.*, Yoo, S.*, “Analysis of length of hospital stay using electronic health records: A statistical and data mining approach” PLOS ONE 13(4): e0195901. https://doi.org/10.1371/journal.pone.0195901, 2018.