TY - RPRT TI - Thin-layer chromatography and multivariate data analysis of willow bark extracts. AU - Kim Wuthold AU - Ines Germann AU - Gudrun Roos AU - Olaf Kelber AU - D Weiser AU - Helmut Heinle AU - Karl-Artur Kovar PY - 2004 DO - 10.1093/chromsci/42.6.306 UR - https://pubmed.ncbi.nlm.nih.gov/15296530/ ID - 15296530 ER -