1. Verification of smokof cigarettes smoked as other parameters used preing history on patients after infarction using urinary viously. Correlationcoefficients of 0.4-0.5 have nicotine and cotinine measurements;Wilcox, R.G.; Hughes, J.; Roland, J.;Br Med J; and urinary nicotine5 concentrations and numbers of cigarettes smoked. In these studies the concentra-; expired carbon monoxide,2,1979
2. Deception among smokers;Sillett, R.W.; Wilson, M.B.; Malcolm, R.E.; Ball, K.P.;Br Med J,1978
3. Nicotine concentrations in urine and saliva of smokers and non-smokers;Feyerabend, C.; Higenbottam, T.; Russell, M.A.H.;Br Med J,1982
4. The determination of isoniazid and its metabolites acetylisoniazid, monoacetyl hydrazine, diacetylhydrazine, isonicotinic acid and isonicotinylglycine in serum and urine;Ellard, G.A.; Gammon, P.T.; Wallace, S.M.;Biochem J,1972
5. A sensitive urine-test method for monitoring the ingestion of isoniazid;Ellard, G.A.; Greenfield, C.;J Clin Pathol,1977