S. Foster

Changes in Cannabis Potency Over the Last 2 Decades (1995–2014): Analysis of Current Data in the United States

M. Elsohly, Zlatko Mehmedic, James C. Church, 2016, Biological Psychiatry.

Potency Trends of Δ9‐THC and Other Cannabinoids in Confiscated Cannabis Preparations from 1993 to 2008 *

Mahmoud A. ElSohly, Suman Chandra, I. Khan, 2010, Journal of forensic sciences.

Potency Trends of Δ9-THC and other Cannabinoids in Confiscated Cannabis Preparations from 1993–2008

I. Khan, M. Elsohly, S. Ross, 2010 .

Laboratory guidance on analytical methods to detect adulterants in commercial botanical materials: The next phase of the ABC-AHP-NCNPR botanical adulterants program

I. Khan, S. Gafner, R. Upton, 2015 .

Preventing adulteration and fraud in botanical ingredients in the international marketplace: the ABC-AHP-NCNPR Botanical Adulterants Prevention Program

S. Gafner, R. Upton, M. Blumenthal, 2019, Planta Medica.