. . . While US may regulate DNA testing laboratories.

Locals seek strict controls over UCSF expansion plans.

Court orders DNA test over chemical claims.

Providing long-term care for persons with AIDS. Results from a survey of nursing homes in the United States.

Gene-altered tomatoes face new protests.

Microsoft founder backs gene sequencing.

Genetically altered tomato set to get the green light.

Zidovudine improves psoriasis in human immunodeficiency virus-positive males.

BST enters battle for consumers.

Milk hormone faces new hurdles on way to market.

NIH awards gene centre grants.

US doctors campaign to support rbGH.

Challenge to growth hormone trial.

Bomb attacks on US researchers.

Stanford seeks life after Cohen-Boyer patent expires.