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WILLIAM DARWIN, M.D.
M.D.
Family Medicine Physician
NPI: 1942491469Individual
Specialties, Licenses & Credentials
Family Medicine PhysicianPrimary
Family Medicine
Code: 207Q00000X
C2853(AR)
Research & Publications (12)
Extended urinary Delta9-tetrahydrocannabinol excretion in chronic cannabis users precludes use as a biomarker of new drug exposure.
PMID 19631478·Drug Alcohol Depend·2009
8-other
Urinary elimination of 11-nor-9-carboxy-delta9-tetrahydrocannnabinol in cannabis users during continuously monitored abstinence.
PMID 19007504·J Anal Toxicol·2008
8-other
Postmortem diagnosis and toxicological validation of illicit substance use.
PMID 18201295·Addict Biol·2008
8-other
Simultaneous GC-EI-MS determination of Delta9-tetrahydrocannabinol, 11-hydroxy-Delta9-tetrahydrocannabinol, and 11-nor-9-carboxy-Delta9-tetrahydrocannabinol in human urine following tandem enzyme-alkaline hydrolysis.
PMID 17988462·J Anal Toxicol·2007
2-rct
Cocaine and metabolites urinary excretion after controlled smoked administration.
PMID 17988460·J Anal Toxicol·2007
8-other
Simultaneous determination of nicotine, cotinine, norcotinine, and trans-3'-hydroxycotinine in human oral fluid using solid phase extraction and gas chromatography-mass spectrometry.
PMID 15639444·J Chromatogr B Analyt Technol Biomed Life Sci·2005
8-other
Urine testing for cocaine abuse: metabolic and excretion patterns following different routes of administration and methods for detection of false-negative results.
PMID 14606991·J Anal Toxicol·2003
8-other
Intra- and interindividual variations in urinary concentrations of endogenous gamma-hydroxybutyrate.
PMID 12220015·J Anal Toxicol·2002
8-other
A comparison of Roche Kinetic Interaction of Microparticles in Solution (KIMS) assay for cannabinoids and GC-MS analysis for 11-nor-9-carboxy-delta9-tetrahydrocannabinol.
PMID 11599600·J Anal Toxicol·2001
4-observational
Urinary excretion profiles for total morphine, free morphine, and 6-acetylmorphine following smoked and intravenous heroin.
PMID 11599592·J Anal Toxicol·2001
8-other
Detection times and analytical performance of commercial urine opiate immunoassays following heroin administration.
PMID 11043654·J Anal Toxicol·2000
4-observational
Data courtesy of the U.S. National Library of Medicine (NLM). Ltrl is not affiliated with or endorsed by NLM.
Contact & Hours
- Address
- 6924 GEYER SPRINGS RD
LITTLE ROCK, AR 72209 - Phone
- (501) 562-1463
Quick Facts
- NPI
- 1942491469
- Entity Type
- Individual
- Gender
- Male
- Medicare
- Not confirmed
- Specialties
- 1
- Locations
- 1
- Publications
- 12
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