Khalaf Saad, M. et al. 2022. Determining Self-Efficacy and Its Related Factors in Adolescents with Major β-Thalassemia Referring to Selected Hospital in Tehran. Advances in Nursing & Midwifery. 31, 4 (Aug. 2022), 30–37. DOI:https://doi.org/10.22037/anm.v31i4.41181.