@article{risser1996-8834106, author = {Risser, D. and You, Z. B. and Cairns, N. and Herrera-Marschitz, M. and Seidl, R. and Schneider, C. and Terenius, L. and Lubec, G.}, title = {{Endogenous opioids in frontal cortex of patients with Down syndrome}}, journal = {Neuroscience letters}, year = {1996}, doi = {10.1016/0304-3940(95)12275-3}, pmid = {8834106}, url = {https://doi.org/10.1016/0304-3940(95)12275-3} }