APA (7th ed.) Citation

CE, H., SY, H., RH, A., & MJ, E. (1990). Variations within the fibrous skeleton and ventricular outflow tracts in tetralogy of Fallot. The Annals of thoracic surgery, 50(3), 450. https://doi.org/10.1016/0003-4975(90)90494-q

Chicago Style (17th ed.) Citation

CE, Howell, Ho SY, Anderson RH, and Elliott MJ. "Variations Within the Fibrous Skeleton and Ventricular Outflow Tracts in Tetralogy of Fallot." The Annals of Thoracic Surgery 50, no. 3 (1990): 450. https://doi.org/10.1016/0003-4975(90)90494-q.

MLA (9th ed.) Citation

CE, Howell, et al. "Variations Within the Fibrous Skeleton and Ventricular Outflow Tracts in Tetralogy of Fallot." The Annals of Thoracic Surgery, vol. 50, no. 3, 1990, p. 450, https://doi.org/10.1016/0003-4975(90)90494-q.

Warning: These citations may not always be 100% accurate.