younas, alveena, Muhammad Asif Nawaz, Ayesha Hafeez, Aamir Ijaz, Muhammad Aamir, Saima Shakil Malik, Naveed Asif and Abdul Manan 2020. Diagnostic accuracy of cannabinoid testing by liquid chromatography-tandem mass spectrometry in human hair. Journal of the Pakistan Medical Association. (Oct. 2020), 1–15. DOI:https://doi.org/10.47391/JPMA.01144.