51.   While still a student there, he began cancer research with his professor and mentor, Evarts A. Graham.

52.   A year later, the company began its research and development programme to create its own playground design and equipment.

53.   After this, he was the first to begin research on high-level computer languages.

54.   As for the suppression of tumor growth, Jeffery is about to begin research involving laboratory mice injected with cancerous human cells to study that further.

55.   Caro has said he began his research believing the late president was motivated to help people, but then decided his real passion was power.

56.   Heat and radiation damaged instruments, and scholars could begin real research only about two weeks after the blast when they placed instruments near the epicenter, he said.

57.   In Seoul, U.S. and South Korean officials began field research Monday to excavate an area at Seoul National University Hospital this week.

58.   Russia and the United States have jointly begun research on the fate of U.S. pilots of the airplanes shot down.

59.   Scientists are about to begin research that could ultimately design plants suitable for space travel.

60.   Scientists at North Carolina State University are about to begin research that could ultimately design plants suitable for space travel.