Shafaq Abbas Muhammad Al-Samarrai and Abdul Monaim Hamad Majeed Al-Samarrai, “Evaluation of vitamin D3 among overweight and obese school students in Samarra city”, J Popl Ther Clin Pharmacol, vol. 29, no. 02, pp. 171–177, Jun. 2022, doi: 10.47750/jptcp.2022.969.