AnAn IVF Center is the most influence assisted reproductive center in South Taiwan. Leaded by President Hsien-An Pan, who is research fellow of Harvard Medical School, member of ASRM and ESHRE, AnAn contributed a large amount of capital to establish a top-quality embryo culture laboratory, with ongoing introduction of cutting edge reproductive medicine technology from abroad. Our center utilize antagonist protocol combined with freezing embryo transfer, which largely elevated successful rate of IVF.