How should I choose the first, second and third generation test tube babies?
At present, test tube babies are divided into a generation of test tube babies according to popular parlance, namely conventional in vitro fertilization embryo transfer (IVF-ET); The second generation of test tube infants, namely intracytoplasmic sperm injection (ICSI); The third generation of test tube infants, namely, pre implantation genetic testing (PGT).