Detecting Methotrexate in Pediatric Patients Using Artificial Neural Networks. - Santiago, Alejandro Medina; Rodríguez, Jorge Iván Bermúdez; Torres, Jorge Antonio Orozco; Rabasa, Julio Alberto Guzmán; Izaguirre, José Manuel Villegas; Alejandro, Gladys Falconi (Applied Sciences (2076-3417), 2025)