Ercan DİNÇEL, et al. “Evaluation of Tryptophan Kynurenine Pathway Relevance With Immune System Biomarkers of Low Energy Trauma Hip Fractures in Osteoporotic Patients”. Archives of Rheumatology, vol. 32, no. 3, Sept. 2017, pp. 203-8, doi:10.5606/ArchRheumatol.2017.6216.