title: d-Phenylalanine does not affect nociceptive, flexion reflex thresholds in normal humans.
mesh_terms: D004311:Double-Blind Method; D004723:Endorphins / Q000378:metabolism; D006801:Humans; D010146:Pain / Q000503:physiopathology*; D010649:Phenylalanine / Q000494:pharmacology*; D012018:Reflex / Q000187:drug effects*
chemical_list: D004723:Endorphins; D010649:Phenylalanine