{Reference Type}: Letter {Title}: Response to Wang et al., Unsupervised machine learning reveals novel traumatic brain injury patient phenotypes with distinct acute injury profiles and long-term outcomes (doi: 10.1089/neu.2019.6705). {Author}: Hood KF;Cohen AS; {Journal}: J Neurotrauma {Volume}: 41 {Issue}: 3 {Year}: 2024 02 20 {Factor}: 4.869 {DOI}: 10.1089/neu.2023.0478