@article{agtarap_kramer_campbell-sills_yuh_mukherjee_manley_mccrea_dikmen_giacino_stein_et al._2020, 
  title={Invariant_mTBI_Symptom_Structure_-_Supplement_Material_REV1_NOV5 – Supplemental material for Invariance of the Bifactor Structure of Mild Traumatic Brain Injury (mTBI) Symptoms on the Rivermead Postconcussion Symptoms Questionnaire Across Time, Demographic Characteristics, and Clinical Groups: A TRACK-TBI Study}, 
  DOI={10.25384/sage.12294422}, 
  abstractNote={Supplemental material, Invariant_mTBI_Symptom_Structure_-_Supplement_Material_REV1_NOV5 for Invariance of the Bifactor Structure of Mild Traumatic Brain Injury (mTBI) Symptoms on the Rivermead Postconcussion Symptoms Questionnaire Across Time, Demographic Characteristics, and Clinical Groups: A TRACK-TBI Study by Stephanie Agtarap, Mark D. Kramer, Laura Campbell-Sills, Esther Yuh, Pratik Mukherjee, Geoffrey T. Manley, Michael A. McCrea, Sureyya Dikmen, Joseph T. Giacino, Murray B. Stein and Lindsay D. Nelson in Assessment}, 
  publisher={SAGE Journals}, 
  author={Agtarap, Stephanie and Kramer, Mark D. and Campbell-Sills, Laura and Yuh, Esther and Mukherjee and Manley, Geoffrey T. and McCrea, Michael A. and Dikmen and Giacino, Joseph T. and Stein, Murray B. and et al.}, 
  year={2020}, 
  month={May}
  }