TY - RPRT TI - Efficient method for the quantitation of urinary leukotriene E4: extraction using an Empore C18 disk cartridge. AU - H Mita AU - R Oosaki AU - Y Mizushima AU - M Kobayashi AU - K Akiyama PY - 1997 DO - 10.1016/s0378-4347(97)00006-6 UR - https://pubmed.ncbi.nlm.nih.gov/9188837/ ID - 9188837 ER -