M. A. . Adewole, A. O. Olanrewaju, I. O. Omotosho, and Y. C. . Adeniyi, “Blood Lead Level, Urinary Porphobilinogen and Serum Acetylcholine in Nigerian Children with Autism Spectrum Disorder”, IJACS, vol. 2, no. 2, pp. 12–22, Dec. 2025, doi: 10.54878/4mzxpg10.