In this Aug. 14, 2013, photo, an embryologist works on embryo at the Create Health fertility clinic in south London. Since the first test-tube baby was
In this Aug. 14, 2013, photo, an embryologist works on embryo at the Create Health fertility clinic in south London. Since the first test-tube baby was born more than three decades ago, in vitro fertilization has become a sophisticated process with pricey incubators, specialized techniques and extensive screening. Now, scientists are going back to basics and testing a simpler and cheaper method intended mainly for use in developing countries. (AP Photo/Sang Tan) (Sang Tan)