PT  - JOURNAL ARTICLE
AU  - Gilbert J. Mannering
AU  - Arthur C. Dixon
AU  - Eugene M. Baker III
AU  - Taiichi Asami
TI  - THE <em>IN VIVO</em> LIBERATION OF MORPHINE FROM CODEINE IN MAN
DP  - 1954 Jun 01
TA  - Journal of Pharmacology and Experimental Therapeutics
PG  - 142--146
VI  - 111
IP  - 2
4099  - http://jpet.aspetjournals.org/content/111/2/142.short
4100  - http://jpet.aspetjournals.org/content/111/2/142.full
SO  - J Pharmacol Exp Ther1954 Jun 01; 111
AB  - Each of three human subjects was fed 130 mgm. of codeine sulfate. Urine was collected for twenty-four hours and examined for the presence of morphine. A crystalline material was isolated and identified as morphine.