1. Measurement of urinary hippuric and m-methylhippuric acids by gas chromatography;Buchet, J.P.; Lauwerys, R.R.;British Journal of Industrial Medicine,1973
2. Quantitative determination in urine of hippuric acid and mor p-methylhippuric acid, metabolites of toluene and mor p-xylene;Ogata, M.; Tomokuni, K.; Takatsuka, Y.;British Journal of Industrial Medicine,1969
3. Urinary excretion of hippuric acid and mor p-methylhippuric acid in persons exposed to vapours of toluene and mor pxylene as a test of exposure;Ogata, M.; Tomokuni, K.; Takatsuka, Y.;British Journal of Industrial Medicine,1970