E A Ross
Affiliation: Fox Chase Cancer Center
- Modeling clustered, discrete, or grouped time survival data with covariatesE A Ross
Department of Biostatistics, Fox Chase Cancer Center, Cheltenhanm, Pennsylvania 19012, USA
Biometrics 55:813-9. 1999..Generalized estimating equations for the marginal hazard regression parameters and pseudolikelihood methods for estimating the dependence parameters are also described. Data from two clinical trials are used for illustration purposes...
- Effect of preoperative chemoradiotherapy on surgical margin status of resected adenocarcinoma of the head of the pancreasJ F Pingpank
Department of Suregery, Fox Chase Cancer Center, Philadelphia, PA 19111, USA
J Gastrointest Surg 5:121-30. 2001..06) and vein (P = 0.04) margins. However, this has not yet resulted in a significant increase in disease-free or overall survival for patients receiving preoperative therapy (P = 0.07)...