sixpenceee: The chip is a 20-millimeter square, about 7 millimeters thick, and each day, it dispenses 30 micrograms of a hormone called levonorgestrel, which has already been used in several kinds of contraceptives. A woman can turn the device on and
sixpenceee: The chip is a 20-millimeter square, about 7 millimeters thick, and each day, it dispenses 30 micrograms of a hormone called levonorgestrel, which has already been used in several kinds of contraceptives. A woman can turn the device on and
