From beyond the grave, a woman who died of breast cancer is suing the late diet guru Dr. Robert Atkins for giving her the advice that she says ended up costing her life. The suit, seeking unspecified damages, was filed in Manhattan Supreme Court by the estate of Carol Rubick, a woman who died of breast cancer on Jan. 18, 2003, after receiving five years of oncological treatments at the Atkins Center for Complementary Medicine. The plaintiff, Linda Lou Poag, executrix of Rubick's estate, claims that Atkins and two other doctors at the Atkins Center were negligent in treating Rubick's...