21.   They believe the protein plays a major role in destroying the macula, the critical central portion of the retina.

22.   Unsettled weather will cover much of the central portion of the nation Thursday as a strong disturbance in the jet stream passes through the region.

23.   In Minnesota, forecaster Chris Scott said freezing rain in the central portion of the state would change to a mixture of snow and ice Tuesday.

24.   In the central portion of the nation, clouds covered the Plains and isolated showers fell in Texas, Arkansas and Louisiana.

25.   Light rain fell in Minnesota and Wisconsin, but the central portion of the country was mostly quiet.

26.   The storm system that began churning its way across the Mississippi Delta and central portions of the state Saturday night left behind numerous downed power lines and damaged buildings.

27.   The storm system that began churning its way across the Mississippi Delta and central portions of the state last night left behind numerous downed power lines and damaged buildings.

28.   The U.N. agency would also oversee food distribution in the south and central portions of Iraq to guarantee equitable distribution, said WFP spokesman Michael Ross.

29.   The U.N. agency would also oversee food distribution in the south and central portions of Iraq to guarantee equitable distribution.

30.   Widely scattered showers affected central portions of the south coast.