Complex sentence: In those days, approximately half of all the towns or villages in Aomori, especially remote areas, had no health nurse because of difficult financial situations of such communities and lack of health nurses who hoped to work there.
Split into simpler sentences: In those days, approximately half of all the towns or villages in Aomori, especially remote areas, had no health nurse. That was because of difficult financial situations of such communities and lack of health nurses who hoped to work there.