1 “... anthropologists, biologists, economists, psychiatrists, public policy experts, sociologists, and others...”

2 “..., neurologists, molecular biologists, pharmacologists, and psychiatrists seeking to study and better understand...”

3 “..., neurologists, molecular biologists, pharmacologists, and psychiatrists seeking to study and better understand...”

4 “... microbiologists, immu­ nologists, physiologists, psychiatrists, oncologists and others. The recreational use...”

5 “... scientists, including microbiologists, immunologists, physiologists, psychiatrists, oncologists...”