1. Newman MB, Freeman TB, Hart CD, Sanberg PR. Neural stem cells for cellular therapy in humans. In: Bottenstein JE, editor. Neural stem cells: development and transplantation. New York: Kluwer Academic, 2003: 379–412.
2. Ludwig CL, Weinberger DR, Bruno G, et al. Buspirone, Parkinson’s disease, and the locus ceruleus. Clin Neuropharmacol 1986; 9: 373–378.
3. Chan-Palay V. Depression and dementia in Parkinson’s disease: catecholamine changes in the locus ceruleus, a basis for therapy. Adv Neurol 1993;60: 438–446.
4. Chan-Palay V. Locus coeruleus and norepinephrine in Parkinson’s disease. Jpn J Psychiatry Neurol 1991;45: 519–521.
5. Mavridis M, Degryse AD, Lategan AJ, Marien MR, Colpaert FC. Effects of locus coeruleus lesions on parkinsonian signs, striatal dopamine and substantia nigra cell loss after 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine in monkeys: a possible role for the locus coeruleus in the progression of Parkinson’s disease. Neuroscience 1991;41: 507–523.