41.   The new study focused on two broad types known as single- and dual-chamber pacemakers.

42.   The next study will focus on families who applied for extensions of their benefits, but were denied.

43.   The studies focus on cardiovascular, skeletal, immune and neurological systems, among others.

44.   The study focused on additives that add oxygen to the fuel.

45.   The study is focusing on the fleet vehicle market, not the commuter market.

46.   The study specifically focused on medical prevention, treatment and rehabilitation.

47.   The studies focused on single-session treatment that involved some form of emotional venting by encouraging the recollection of the event.

48.   The study focused on specific areas where women differed from men on what influenced a vehicle purchase.

49.   The study focuses on the Argentine ant, a particularly aggressive species that has infested most of coastal California.

50.   The study focused on a hormonelike component in soy known as genistein.