TY - RPRT TI - Simplified phenotyping with dextromethorphan by thin-layer chromatography: application to clinical laboratory screening for deficiencies in oxidative drug metabolism. AU - R J Guttendorf AU - P J Wedlund AU - J Blake AU - S L Chang PY - 1988 DO - 10.1097/00007691-198804000-00021 UR - https://pubmed.ncbi.nlm.nih.gov/3201536/ ID - 3201536 ER -