After hospitalization and the collapse of Fascism , he joined the resistance against the German occupation .
In 1940 Italy entered World War II and Dulbecco was recalled and sent to the front in France and Russia , where he was wounded .
After hospitalization and the collapse of Fascism , Dulbecco joined the resistance against the German occupation .
In 1940 Italy entered World War II and Dulbecco was recalled and sent to the front in France and Russia , where he was wounded .