Hana Attiya Salman and Iktefaa Abdul- Hameed 2022. The Relationship of Irisin with Leptin and Testosterone Hormones in Students of the College of Physical Education and Sports Sciences / Tikrit University. Tikrit Journal of Pure Science. 26, 2 (Dec. 2022), 65–70. DOI:https://doi.org/10.25130/tjps.v26i2.121.