- Serotonin 5-HT1A, 5-HT1B, and 5-HT2A receptor mRNA expression in subjects with major depression, bipolar disorder, and schizophrenia. López-Figueroa, A.L., Norton, C.S., López-Figueroa, M.O., Armellini-Dodel, D., Burke, S., Akil, H., López, J.F., Watson, S.J. Biol. Psychiatry (2004)