Unlocking The Efficacy of Tetrahydrobiopterin (BH4) Towards Metabolic Profile and Growth Status in Children With Phenylketonuria: A Meta Analysis. Arch Pediatr Gastr Hepatol Nutr 2025, 4 (3), 111-128. https://doi.org/10.58427/apghn.4.3.2025.111-128.