The National Center for Complementary and Integrative Medicine "is concerned with determining the usefulness and safety of complementary and integrative medical interventions based on rigorous scientific investigations in addition to providing information based on scientific research to the general public that helps them make decisions related to health care." However, the neurologist at Yale Stephen University School of Medicine Novella is skeptical about this, seeing that the activities of the National Center for Complementary and Integrative Medicine are used to confer a kind of eligibility for illegal treatments. ”The National Center for Complementary and Integrative Medicine stated on its website that there is“ emerging evidence proving that some of the expected benefits are real or meaningful, ”he adds. The center states that "scientific evidence is limited" and that "the lack of reliable data often makes informed decision-making regarding complementary health care difficult."