| APA | Smart Define. (2011). congenital heart defect thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/congenital_heart_defect/thesaurus/narrower |
| Chicago | Smart Define. 2011. "congenital heart defect thesaurus" https://smartdefine.org/congenital_heart_defect/thesaurus/narrower (accessed September 27, 2026). |
| Harvard | Smart Define 2011, congenital heart defect thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/congenital_heart_defect/thesaurus/narrower>. |
| MLA | Smart Define. "congenital heart defect thesaurus" 26 April 2011. Web. 27 September 2026. <https://smartdefine.org/congenital_heart_defect/thesaurus/narrower> |