A new silicone rubber based suppository has been used for sterilization clinical trials. The clinical observation has lasted for more than five years and its result was satisfactory. After five years of observation of 113 clinic cases, there were 104 cases of nonpergnancy and 9 cases of pregnancy. The percentage of success was 92.04% and percentagl of percenancy was 7.96%. The 9 cases of pregnancy all occurred in the first three years: It is interesting that there was no case of pergnancy in the last two years and the reaction was slight, There was one case in which a woman was injected with t...
