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[3] JAMA studies and Mangini lawsuit In December 1991, the Journal of the American Medical Association ( JAMA ) published a study in which young children were asked to match brand logos with products

The first stage equation of the 2SRI specifies khat consumption as a function of exogenous variables and the second stage of the 2SRI approach includes the residual computed from first stage estimation as a regressor in addition to other exogenous variables

Its legal in Canada but it remains illegal in the U.S

Youre much smarter than I gave you credit for. And whats that make you? Dumber than I knew. Good words for the headstone, Luciano says

Why This Study Matters Cannabis smoke contains known carcinogens, including benzopyrene, benzanthracene, and fine particulate matter, and prior research has suggested that smoking cannabis may induce bronchial molecular and histopathologic changes linked to carcinogenesis (Pradre et al., 2026)