an Infant, Aged 2 Weeks, Exhibits Feeding Difficulties and Failure to Thrive. the Child Displays Irritability and Unusually Musty-smelling Urine. Skin Examination Reveals Eczematous Rashes. Neurological Signs Include Hypertonia and Hyperreflexia. Additionally, the Infant Shows Developmental Delays, with Poor Head Control and Reduced Interaction with Surroundings. F