Dennedy, Michael C and Friel, Ann M and Houlihan, Diarmaid D and Broderick, Venita M and Smith, Terry and Morrison, John J (2004) Cannabinoids and the human uterus during pregnancy. American Journal of Obstetrics & Gynecology, 190, pp. 2-9. https://doi.org/10.1016/j.ajog.2003.07.013.

Morrison, John J and Chitty, Lynn S and Peebles, Donald and Rodeck, Charles H (2005) Recreational drugs and fetal gastroschisis: maternal hair analysis in the peri-conceptional period and during pregnancy. British Journal of Obstetrics and Gynaecology, 112, (8), pp. 1022-1025. https://doi.org/10.1111/j.1471-0528.2005.00655.x.

Morrison, Julia C and Dempsey, Mark A and Greaney, Clare and Morrison, John J (2024) Smoking during pregnancy in an Irish obstetric population: prevalence, maternal and ethnic factors. European Journal of Obstetrics, Gynecology, and Reproductive Biology, 303, pp. 317-321. https://doi.org/10.1016/j.ejogrb.2024.10.057.