R-beta: additive relative risk models

[Gonzalo Lopez-Abente]

Hello,

I need help to fit some additive relative risk models using R or S-plus.
Somebody knows if there are functions for that?

Regards, Gonzalo
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  Gonzalo Lopez-Abente                     glabente at isciii.es
  Servicio de Epidemiologia del Cancer        Tfn. 34-1-3877802
  Centro Nacional de Epidemiologia            Fax  34-1-3877816
  Sinesio Delgado 6, 28029 Madrid, SPAIN   http://193.146.50.130        
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