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World-first clinical trial of cannabis for chemotherapy patients kicks of in NSW

Lauren Hew knows she'll be fighting cancer until it wins.

The 32-year-old mother of two was diagnosed with Ewing sarcoma in 2014. After a year-and-a-half in remission the cancer came back.

"It's heartbreaking, but the sad reality is this is not something I'm going to get over. It's more how long can I keep going," she said.

Her two children, Ava,4, and Ashton, 3, know little of the intense waves of nausea and violent vomiting episodes their mother suffers during and after her chemotherapy cycles.