title: Definition of "experimental".
mesh_terms: D035843:Biomedical Research; D006801:Humans; D007246:Infertility / Q000628:therapy*; D017712:Peer Review, Research; D027724:Reproductive Techniques, Assisted / Q000009:adverse effects; D035703:Therapies, Investigational / Q000009:adverse effects; D016896:Treatment Outcome