Siman, R., Shahim, P., Tegner, Y., Blennow, K., Zetterberg, H., & Smith, D. H. (2015). Serum SNTF Increases in Concussed Professional Ice Hockey Players and Relates to the Severity of Postconcussion Symptoms. J Neurotrauma.

Siman, Robert, Pashtun Shahim, Yelverton Tegner, Kaj Blennow, Henrik Zetterberg, i Douglas H. Smith. "Serum SNTF Increases in Concussed Professional Ice Hockey Players and Relates to the Severity of Postconcussion Symptoms." J Neurotrauma 2015.

Siman, Robert, et al. "Serum SNTF Increases in Concussed Professional Ice Hockey Players and Relates to the Severity of Postconcussion Symptoms." J Neurotrauma 2015.