Cannabis oil extracts for chronic pain: what else can be learned from another structured prospective cohort? oleh Dorit Pud, Suhail Aamar, Bareket Schiff-Keren, Roee Sheinfeld, Silviu Brill, Dror Robinson, Yaakov Fogelman, George Habib, Haggai Sharon, Howard Amital, Boris Boltyansky, Simon Haroutounian, Elon Eisenberg