dr. young lee. wonderful defendant. we're talking about women losing their hair. >> even though hair loss is in the fatal it is a devastating consequence of chemotherapy. we're excited to have a new technology that can help women preserve their hair tell us about chemo coal cats. >> it enables women to keep a significant portion of the hair. it causes vasoconstriction. it's a cold cap, freezing point low 32 degrees, chilled down to minus 25 to minus 33 celsius. when a cap goes on a patient's head it causes the blood vessels in the scalp area to constrict, vasoconstriction, and impedes the agents to the hair follicles. >> actually most common cancer patients are candidates. we have people we advice against, people with mood cancer like leukemia and lymphoma but cancers like breast, colon, ovarian cancer, most people can benefit from this treatment. and about not not% of the -- 90% of the time this works great. one patient had thin hair and she was older, so it didn't work out that well. across the board studies have show