51.   The study focused on esophageal adenocarcinoma, which has been on the rise in recent years among men in America and Western Europe.

52.   The study focused on five Northeastern cities.

53.   The study focuses on the conditions immigrants face in their communities, rather than just their buildings.

54.   The studies did not focus on postmenopausal women, or on women with smaller tumors who had few or no lymph nodes showing evidence of the spread of cancer.

55.   The studies focus on technology, range, payload capacity and systems testing.

56.   The study did not focus on how recipients might feel about getting bad news from the computer, rather than from a human voice.

57.   The study focused on a comparison between revenue and expenditures in the San Fernando Valley and revenue and expenditures in the rest of the city.

58.   The study released Tuesday focused on fund-raising in the presidential campaign during the first nine months of last year, the most recent data available.

59.   The UCLA study focused on revenue generated by professional and college sports, horse-racing tracks and annual sporting events like the Toyota Grand Prix of Long Beach.

60.   This study focuses on his liberalism, which was complex in that it acknowledged no one right path for human society.