Dhabaan, Anwar Abed Nasser. 2017. “The Allelic and Polymorphism Association of Tumor Necrosis Factor-Alpha Gene (-308 G A Genotype) in Some Iraqi Rheumatoid Arthritis Patients”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 36 (5): 302-9. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/8336.