M. A. Haque, M. M. Rahman, M. A. Adnan, A. Y. Rumi, M. Ahmed, and M. T. Islam, “Safety and efficacy of use of aminophylline and caffeine in management of apnea of prematurity”, Int J Contemp Pediatr, vol. 12, no. 11, pp. 1773–1777, Oct. 2025.