21.   He is the chairman of TissueInformatics, a biotech start-up that develops software to analyze human tissue.

22.   Human tissue that did not belong to Shields was found under her fingernails.

23.   In a San Francisco laboratory study, Clomid was shown to affect human reproductive tissue grafted into mice much as DES does.

24.   Injecting human stem cells into an immune-compromised mouse results in a growth of mixed human tissues that lives like a parasite inside the mouse.

25.   Is human tissue a natural resource akin to oil or iron?

26.   It is worth hundreds of millions of dollars a year in the United States, despite a law banning the sale of human tissue.

27.   It is helping pay for research by innovators such as Robert S. Langer, a pioneer in engineering human tissue in the laboratory.

28.   Medical waste may include such items as bloody gauze pads, bandages, used syringes and human tissue and organs.

29.   Now, the talk is of human tissue.

30.   Normally, police would have been able to find evidence like hairs, blood or human tissue belonging to the attacker, but that may have disappeared.