Rokn, A., Keshtkar, A., Monzavi, A., Hashemi, K., & Bitaraf, T. (2018). Comparing Short Dental Implants to Standard Dental Implants: Protocol for a Systematic Review. JMIR Research Protocols, 7(1), e16. https://doi.org/10.2196/resprot.8836 (Original work published 2018)

Soleimani, R., Jalali, M., Keshtkar, A., & Jalali, S. (1969). Protocol for a Systematic Review and Meta-Analysis of Lithium, Anticonvulsive or atypical antipsychotic Drugs for Treatment of Refractory Obsessive-Compulsive Disorder. Journal of Medicine and Life, 10(4), 208-215. (Original work published 1969)

Sarhangi, N., Khatami, F., Keshtkar, A., Heshmat, R., Atlasi, R., & Mohammadamoli, M. (1969). The Role of Mitochondrial DNA (mtDNA) in the Development of Diabetic Retinopathy (DR): A Systematic Review. Medical Hypothesis, Discovery & Innovation Ophthalmology Journal, 6(2), 30-38. (Original work published 1969)