title: Definition of "experimental".
abstract: This Practice Committee Opinion offers a definition of what is "experimental."
mesh_terms: D000818:Animals; D005260:Female; D006801:Humans; D007246:Infertility / Q000628:therapy*; D008297:Male; D011247:Pregnancy; D027724:Reproductive Techniques, Assisted / Q000009:adverse effects / Q000145:classification*; D012107:Research Design; D009626:Terminology as Topic