disease. finally, opponents of "savior siblings" are concerned with the welfare of the child, mainly that the procedure will cause emotional and psychological harm to the child. currently in the united states, no formal regulation or guideline exists. the ethical decisions regarding this procedure is in the discretion of health care providers and their patients. in contrast, the uk's use of pgd is regulated by the human fertilization and embryology act (hfea), which requires clinics performing this technique to attain a license and follow strict criteria. religious objections