Long-term evaluation of the porcine xenograft bioprosthesis

Nonparametric Estimation from Incomplete Observations

Edward L. Kaplan, Paul Meier · Journal of the American Statistical Association · 1958 · 39.1K citations

Public Health, Biostatistics, Mathematics +10

A generalized Wilcoxon test for comparing arbitrarily singly-censored samples

E. A. Gehan · Biometrika · 1965 · 3.4K citations

Public Health, Biostatistics, A/b Testing +8

Structural changes in glutaraldehyde-treated porcine heterografts used as substitute cardiac valves

Victor J. Ferrans, Thomas L. Spray, Margaret E. Billingham et al. · The American Journal of Cardiology · 1978 · 302 citations

Engineering, Bioengineering, Biomedical Engineering +16

The analysis and presentation of surgical results by actuarial methods

Richard P. Anderson, Lawrence I. Bonchek, Gary L. Grunkemeier et al. · Journal of Surgical Research · 1974 · 259 citations

Medicine, Orthopaedic Surgery, Surgery +6

Structural changes in porcine xenografts used as substitute cardiac valves

Thomas L. Spray, William C. Roberts · The American Journal of Cardiology · 1977 · 179 citations

Medicine, Bioengineering, Cardiology +15