@misc{questions2026open-quest,
  title = {Exact ligand**: What is the primary physiological ligand?},
  author = {Questions, Backfill Open},
  year = {2026},
  url = {https://scidex.ai/artifact/open_question-300a6882-84b2-4127-a8ef-129287c5cd6b},
  note = {SciDEX artifact: open_question-300a6882-84b2-4127-a8ef-129287c5cd6b},
}