Hökfelt, Т. et al. 'Coexistence of peptides and putative transmitters in neurons'. Advances in Biochemical Psychopharmacology, 22, 1–23 (1980).

Hokfelt, T. et al. Neuropeptides – an overview. Neuropharmacology, 39, 1337–56 (2000); Hokfelt, T. et al. 'Some aspects on the anatomy and function of central cholecystokinin systems'. BMC Pharmacology and Toxicology, 91, 382–6 (2002); и Hokfelt, Т., Bartfai, T.&Bloom, F. 'Neuropeptides: opportunities for drug discovery'. Lancet Neurology, 2, 463–72 (2003); and Hokfelt, Т., Pernow, B.&Wahren, J. 'Substance P: a pioneer amongst neuropeptides'. Journal of Internal Medicine, 249, 27–40(2001).