- Product-limit survival functions with correlated survival timesR L Williams
Research Triangle Institute, NC 27709 2194, USA
Lifetime Data Anal 1:171-86. 1995..Extension to life table methods is also discussed...
- A note on robust variance estimation for cluster-correlated dataR L Williams
Research Triangle Institute, Research Triangle Park, North Carolina 27709 2194, USA
Biometrics 56:645-6. 2000..The result is not new, but a simple and general reference is not readily available. The use of the method will benefit from a general explanation of its wide applicability...