Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Text availability

Article attribute

Article type

Publication date

Search Results

78 results

Filters applied: . Clear all
Results are displayed in a computed author sort order. The Results By Year timeline is not available.
Page 1
Development and validation of a liquid chromatography mass spectrometry assay for the simultaneous quantification of methadone, cocaine, opiates and metabolites in human umbilical cord.
de Castro A, Concheiro M, Shakleya DM, Huestis MA. de Castro A, et al. Among authors: concheiro m. J Chromatogr B Analyt Technol Biomed Life Sci. 2009 Oct 1;877(27):3065-71. doi: 10.1016/j.jchromb.2009.07.028. Epub 2009 Jul 24. J Chromatogr B Analyt Technol Biomed Life Sci. 2009. PMID: 19656745 Free PMC article.
78 results