TY - RPRT TI - Biological sample preparation and data reduction concepts in pharmaceutical analysis. AU - E L Johnson AU - D L Reynolds AU - D S Wright AU - L A Pachla PY - 1988 DO - 10.1093/chromsci/26.8.372 UR - https://pubmed.ncbi.nlm.nih.gov/3063720/ ID - 3063720 ER -