21.   Kirshen said the study will focus on such potential problems as the vulnerability of tall buildings to howling winds and rising water tables, the latter weakening foundations.

22.   Lesar said his study focused on prescribing errors, but said the hospital has tried to improve dispensing.

23.   Most previous studies have focused on the link between the fictionalized violence of television entertainment and increased aggression in children who watch these shows.

24.   Most medical studies have focused on men.

25.   Most studies have focused almost exclusively on the question of whether homosexual parenting harms children.

26.   Most studies have focused on the SAT, but the two tests are designed so similarly that the same criticisms would apply to both.

27.   One study will focus on data about drugs provided to AIDS patients by the federal-state Medicaid health insurance program and a state program.

28.   Other recent studies have focused on identifying minor brain discrepancies between homosexual and heterosexual men, reporting in general that gay brains appeared comparatively feminine.

29.   Other studies have focused on autism and deafness among Ashkenazi Jews.

30.   One study focused on the younger brothers of boys convicted of crimes.