Khattak, Muhammad Haroon, et al. “COMPARISON OF EFFECT OF OLANZAPINE AND RESPERIDONE ON SERUM PROLACTIN LEVELS IN PATIENTS WITH FIRST EPISODE PSYCHOSIS”. Pakistan Armed Forces Medical Journal, vol. 68, no. 6, Dec. 2018, pp. 1538-43, https://pafmj.org/PAFMJ/article/view/2536.