TY - RPRT TI - Tryptophan modulation and cognition. AU - Wim J Riedel AU - Sjacko Sobczak AU - Jeroen A J Schmitt PY - 2003 DO - 10.1007/978-1-4615-0135-0_24 UR - https://pubmed.ncbi.nlm.nih.gov/15206734/ ID - 15206734 ER -