Abbasi Nazari, Mohammad, et al. “The Effect of Atenolol on Thyroid Hormons in Subclinical Hyperthyroidism: Effect of Atenolol on Thyroid Hormons”. Iranian Journal of Pharmaceutical Sciences, vol. 1, no. 4, Oct. 2005, pp. 243-8, doi:10.22037/ijps.v1.39547.