The higher survival rate in the investigation by Zemskov et al from 2000 compared to the investigation by Gansauge et al. from 2002 has been used as an argument to compromize the quality of the investigations results on Ukrain. One way to explain these differen could be a synergistic effect between vitamin C and Ukrain. Another explanation can be different degrees of severity of the patients at the beginning of the study.
Different survival rates in two different Pancreatic Cancer investigations.