Sayana Press is aimed at poor women in 69 countries
                                
                                
                                    (Newser) -
                                    Sayana Press is a pre-packaged shot, costs a buck, lasts three months, and could revolutionize the way women in poor countries approach birth control, reports the  BBC . A three-way deal between the Bill and Melinda Gates Foundation, Pfizer, and the Children's Investment Fund Foundation is looking to make Sayana...