Evidence of melatonin synthesis by human lymphocytes and its physiological significance: possible role as intracrine, autocrine, and/or paracrine substance.

1. Carrillo-Vico, A.
2. Calvo, J.R.
3. Abreu, P.
4. Lardone, P.J.
5. García-Mauriño, S.
6. Reiter, R.J.
7. Guerrero, J.M.