Delayed Childbearing as a Growing, Previously Unrecognized Contributor to the National Plural Birth Excess, https://journals.lww.com/greenjournal/Fulltext/2018/10000/Delayed_Childbearing_as_a_Growing,_Previously.26.aspx, Accessed October 10, 2022
Assisted Reproductive Technology, https://medlineplus.gov/assistedreproductivetechnology.html, Accessed October 10, 2022
Is the probability of having twins determined by genetics? https://medlineplus.gov/genetics/understanding/traits/twins/, Accessed October 10, 2022
Relationship of maternal body mass index and height to twinning, https://pubmed.ncbi.nlm.nih.gov/15738030/, Accessed October 10, 2022
Mechanisms of twinning: VII. Effect of diet and heredity on the human twinning rate, https://pubmed.ncbi.nlm.nih.gov/16779988/, Accessed October 10, 2022
Mechanisms of twinning: VIII. Maternal height, insulin like growth factor and twinning rate, https://pubmed.ncbi.nlm.nih.gov/17039697/, Accessed October 10, 2022
Twinning and the changing pattern of breast-feeding: a possible relationship in a small rural population, https://pubmed.ncbi.nlm.nih.gov/7349695/, Accessed October 10, 2022
Dizygotic twinning, https://pubmed.ncbi.nlm.nih.gov/18024802/, Accessed October 10, 2022
FAQs Multiple Pregnancy, https://www.acog.org/womens-health/faqs/multiple-pregnancy, Accessed October 10, 2022
Twins – identical and fraternal, https://www.betterhealth.vic.gov.au/health/ConditionsAndTreatments/twins-identical-and-fraternal, Accessed October 10, 2022
Twin pregnancy: What twins or multiples mean for mom, https://www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/in-depth/twin-pregnancy/art-20048161, Accessed October 10, 2022
A genome wide linkage scan for dizygotic twinning in 525 families of mothers of dizygotic twins, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2912534/, Accessed October 10, 2022
Pregnant with twins, https://www.nhs.uk/pregnancy/finding-out/pregnant-with-twins/, Accessed October 10, 2022
Study Finds That A Woman’s Chances Of Having Twins Can Be Modified By Diet, https://www.sciencedaily.com/releases/2006/05/060521103211.htm, Accessed October 10, 2022
Taller Women Are More Likely To Have Twins, Obstetrician’s Study Confirms, https://www.sciencedaily.com/releases/2006/09/060923104930.htm, Accessed October 10, 2022
Study Finds That A Woman’s Chances Of Having Twins Can Be Modified By Diet, https://www.sciencedaily.com/releases/2006/05/060521103211.htm, Accessed October 10, 2022
Taller Women Are More Likely To Have Twins, Obstetrician’s Study Confirms, https://www.sciencedaily.com/releases/2006/09/060923104930.htm Accessed October 10, 2022