Ritchey, M. D., Wall, H. K., George, M. G., & Wright, J. S. (2019). US trends in premature heart disease mortality over the past 50 years: Where do we go from here? Trends Cardiovasc Med.
استشهاد بنمط شيكاغوRitchey, Matthew D., Hilary K. Wall, Mary G. George, و Janet S. Wright. "US Trends in Premature Heart Disease Mortality Over the Past 50 Years: Where Do We Go From Here?" Trends Cardiovasc Med 2019.
MLA استشهادRitchey, Matthew D., Hilary K. Wall, Mary G. George, و Janet S. Wright. "US Trends in Premature Heart Disease Mortality Over the Past 50 Years: Where Do We Go From Here?" Trends Cardiovasc Med 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.