Khorprasert , C., Kongsomboon, K. and Hanprasertpong, T. 2026. Prevalence of Illicit Drug use during Pregnancy between Teenage and Non-teenage in Thailand. Thai Journal of Obstetrics and Gynaecology. 34, 2 (Apr. 2026), 131–143. DOI:https://doi.org/10.66650/tjog.v34i2.277485.