APA

Kopecky S. L., Gersh B. J., McGoon M. D., Mair D. D., Porter C. J., Ilstrup D. M., McGoon D. C., Kirklin J. W. & Danielson G. K. (19881202). Long-term outcome of patients undergoing surgical repair of isolated pulmonary valve stenosis. Follow-up at 20-30 years. : Circulation.

Chicago

Kopecky S L, Gersh B J, McGoon M D, Mair D D, Porter C J, Ilstrup D M, McGoon D C, Kirklin J W and Danielson G K. 19881202. Long-term outcome of patients undergoing surgical repair of isolated pulmonary valve stenosis. Follow-up at 20-30 years. : Circulation.

Harvard

Kopecky S. L., Gersh B. J., McGoon M. D., Mair D. D., Porter C. J., Ilstrup D. M., McGoon D. C., Kirklin J. W. and Danielson G. K. (19881202). Long-term outcome of patients undergoing surgical repair of isolated pulmonary valve stenosis. Follow-up at 20-30 years. : Circulation.

MLA

Kopecky S L, Gersh B J, McGoon M D, Mair D D, Porter C J, Ilstrup D M, McGoon D C, Kirklin J W and Danielson G K. Long-term outcome of patients undergoing surgical repair of isolated pulmonary valve stenosis. Follow-up at 20-30 years. : Circulation. 19881202.