Teratomas are rare tumors composed of multiple tissue types that are sometimes found in newborn babies. This study aims to determine if there is a common link between Puerto Rican mothers of babies born with congenital teratomas. The methodology will involve obtaining informed consent from these mothers and having them fill out daily forms, as well as using other organisms in further experiments. The goal is to help prevent congenital teratomas by finding ways to better understand their development.