Safety and efficacy of retrograde intrarenal surgery (RIRS) in pediatric patients: Insights from a single-center study. - Nusrat, Nadeem Bin; Rehman, Assad ur; Muhammad, Shujah; Zafar, Nauman; Imtiaz, Sarmad; Iqbal, Saud; Imtiaz, Saira (Urologia Journal, 2026)