JC. Melchior, D. Rigaud, N. Colas-Linhart, A. Petiet i inni. Immunoreactive beta-endorphin increases after an aspartame chocolate drink in healthy human subjects. „Physiol Behav”. 50 (5), s. 941-944, 1991. DOI: 10.1016/0031-9384(91)90418-N. PMID: 1805284.
JC. Melchior, D. Rigaud, N. Colas-Linhart, A. Petiet i inni. Immunoreactive beta-endorphin increases after an aspartame chocolate drink in healthy human subjects. „Physiol Behav”. 50 (5), s. 941-944, 1991. DOI: 10.1016/0031-9384(91)90418-N. PMID: 1805284.