APA Citation

Frank, S., Johnson, A., & Ross, J. (1973). Natural history of valvular aortic stenosis.

Citação norma Chicago

Frank, S., A. Johnson, and J. Ross. Natural History of Valvular Aortic Stenosis. 1973.

MLA Citation

Frank, S., A. Johnson, and J. Ross. Natural History of Valvular Aortic Stenosis. 1973.

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