TY - JOUR AU - Kema, I P TI - Profiling of tryptophan-related plasma indoles in patients with carcinoid tumors by automated, on-line, solid-phase extraction and HPLC with fluorescence detection JO - Clinical Chemistry VL - 47 PY - 2001 L3 - PubMed-ID: 11568091 SP - 1811 EP - 1820 N1 - et al. ER -