41.   Scientists know for certain that the male hormone testosterone fuels the cancer once it is sparked.

42.   Researchers are experimenting with all sorts of things, including supplements of the male hormone testosterone.

43.   Sozos Papasozomenos and Alikunju Shanavas of the University of Texas-Houston decided to study the male hormone testosterone.

44.   Steroids are derivatives of the natural male hormone testosterone.

45.   Testosterone is the major male hormone that turns boys into men.

46.   Testosterone is considered a male hormone but women do have the hormone, about one-tenth of the amount found in men.

47.   Testosterone, the male hormone, regulates prostate growth.

48.   Testosterone, often referred to as the male hormone, appears to play a role in maintaining mental sharpness as men age, researchers have found.

49.   That testis must then produce testosterone, one of a class of male hormones called androgens.

50.   Syntex soon also synthesized testosterone, the principal male hormone.