Arthritic Knees, But Not Hips, Have Robust Repair Response Heart Disease May Be a Risk Factor for Prostate Cancer Copper + Love Chemical = Big Sulfur Stink Vaccines to Boost Immunity Where It Counts, Not Just Near Shot Site New Way to Learn About -- and Potentially Block -- Traits in Harmful Pathogens

Romneys Path to Pro-Life Position on Abortion Cities Turn to a Crop for Cash: Medical Marijuana Obama Offers Accommodation on Birth Control Rule On Religion: Recovery Rabbi Shais Taub Finds Wide Audience - On Religion Supply of Methotrexate, a Cancer Drug, May Run Out Soon

Drug halts organ damage in inflammatory genetic disorder NIH study links high levels of cadmium, lead in blood to pregnancy delay Restricting calories early on does not help acute lung injury patients on ventilators New, free e-biography released New website: NIH Clinical Research Trials and You

Obama shift seeks to defuse birth-control fight Test for Komen charity looms at next Race for the Cure Gauging hype during Heart Month: 5 tests you might not need China probes "bouncing" boiled eggs Woman: court ruling on pumping breast milk unfair