Russell, D., and T. Glucina. “REDUCED ANXIETY SYMPTOMS IN A PATIENT SCREENED WITH THE PHQ4 RECEIVING CHIROPRACTIC CARE: A CASE REPORT AND REVIEW OF THE LITERATURE”. Journal of Contemporary Chiropractic, Vol. 2, no. 1, Feb. 2019, pp. 41-48, https://journal.parker.edu/index.php/jcc/article/view/53.