Royston, D., Bidstrup, B.P., Taylor, K.M. and Sapsford, R.N. (1987) Effect of Aprotinin on Need for Blood Transfusion after Repeat Open-Heart Surgery. The Lancet, 2, 1289-1291.
http://dx.doi.org/10.1016/S0140-6736(87)91190-1

has been cited by the following article: