Limitations include small sample size, lack of untreated control group, and length of follow - up. (cebc4cw.org)
Limitations include the small sample size, lack of untreated control group, and lack of follow - up. (cebc4cw.org)
After 6 months, they found that less than 10 % of the animals» ganglion nerve cells had died, compared to 36 % in an untreated control group. (sciencemag.org)