New therapy shows promise for prostate cancer   •   Roman Empire reshaped Iberian ancestry more than later migrations   •   Vegan-fed cats show lower obesity odds in survey   •   CF Foundation issues new reproductive health guidance   •   Flawed Hospital Sinks May Fuel Superbug Spread   •   New therapy shows promise for prostate cancer   •   Roman Empire reshaped Iberian ancestry more than later migrations   •   Vegan-fed cats show lower obesity odds in survey   •   CF Foundation issues new reproductive health guidance   •   Flawed Hospital Sinks May Fuel Superbug Spread   •