Tsymbaliuk, V. I., I. G. Vasilyeva, E. S. Galanta, N. G. Chopik, O. I. Tsyubko, N. P. Olexenko, and T. N. Vaschulenko. “Neurotrophins Expression in Human Brain from Embryonic Weeks 5–9”. Ukrainian Neurosurgical Journal, no. 3, pp. 13-16, https://theunj.org/article/view/107560.