1. Braunwald E, Swan HJC (1968) Cooperative study on cardiac catheterization.Circulation [Suppl 3]37 and38
2. Ho CS, Krovetz LJ, Rome RD (1972) Major complications of cardiac catheterization and angiocardiography in infants and children.Johns Hopkins Med J 131:247–258
3. Mantel N, Haenszel W (1959) Statistical aspects of the analysis of data from retrospective studies of disease.J Natl Cancer Inst 22:719–748
4. Rothman KJ, Boyce JD Jr (1979) Epidemiological analysis with a programmable calculator. US Dept HEW, NIH publication 79-1649.
5. Stanger P, Heymann MA, Tarnoff H, Hoffman JIE, Rudolph AM (1974) Complications of cardiac catheterization of neonates, infants and children.Circulation 50:595–608