51.   It is a success that Penn Club officials attribute in large part to aggressively seeking young alumni, especially women.

52.   It is a trend that public health officials attribute to better prevention, earlier detection, and improved treatment of disease.

53.   Law enforcement officials attribute the continued drop in crime rates to a healthy economy, crime prevention programs, tougher sentences and more police officers on the street.

54.   Local election officials attributed the outcome to what they said was a confusing ballot that spread the names of presidential candidates across two pages.

55.   Madikizela-Mandela denied the allegations, and ANC officials attributed her behavior to the stresses and hardships she faced when apartheid-era security forces routinely harassed her.

56.   Medicare officials attributed the two-year difference to changing economic assumptions.

57.   No serious injuries were reported in the other accidents, which officials attributed to blowing snow and icy pavement.

58.   National health officials attribute the decrease largely to early mammogram screening and advances in treatment.

59.   New Hampshire officials attribute part of their predicament to the Republican National Committee for not forbidding states from holding their Republican primaries too close to New Hampshire.

60.   Officials attribute that at least in part to the increased missions of the Guard and Reserves.