TY - RPRT TI - An S-Plus function to calculate relative risks and adjusted means for regression models using natural splines. AU - Jiguo Cao AU - Marie-France Valois AU - Mark S Goldberg PY - 2006 DO - 10.1016/j.cmpb.2006.08.004 UR - https://pubmed.ncbi.nlm.nih.gov/16979785/ ID - 16979785 ER -