The first type is destruction (ablation) of the abnormal area, and the second type is removal (resection). Both types of treatment cure 90% of patients with dysplasia, meaning that 10% of women will have a recurrence of their abnormality after treatment.
On September 1, 1939, Hitler invaded Poland from the west; two days later, France and Britain declared war on Germany, beginning World War II. On September 17, Soviet troops invaded Poland from the east.
Asking when World War II began is a good way to start a long and passionate debate. Some say it was simply a continuation of the First World War that had theoretically ended in 1918. Others point to 1931, when Japan seized Manchuria from China.