An S-Plus function to calculate relative risks and adjusted means for regression models using natural splines. - Jiguo Cao; Marie-France Valois; Mark S. Goldberg (Comput. Methods Programs Biomed., 2006)

Accounting for Data-Dependent Degrees of Freedom Selection When Testing the Effect of a Continuous Covariate in Generalized Additive Models. - Andrea Benedetti; Michal Abrahamowicz; Mark S. Goldberg (Commun. Stat. Simul. Comput., 2009)