Comment on

• Early Prediction of Acute Kidney Injury in the Emergency Department With Machine-Learning Methods Applied to Electronic Health Record Data.

  Martinez DA, Levin SR, Klein EY, Parikh CR, Menez S, Taylor RA, Hinson JS. Martinez DA, et al. Ann Emerg Med. 2020 Oct;76(4):501-514. doi: 10.1016/j.annemergmed.2020.05.026. Epub 2020 Jul 24. Ann Emerg Med. 2020. PMID: 32713624
• Selection Bias in the Predictive Analytics With Machine-Learning Algorithm.

  Jiang J. Jiang J. Ann Emerg Med. 2021 Feb;77(2):272-273. doi: 10.1016/j.annemergmed.2020.09.004. Ann Emerg Med. 2021. PMID: 33487321 No abstract available.