21.   She said research was needed to develop a form of estrogen that helps men without causing side effects like prostate disease or impotence.

22.   Such companies as International Business Machines Corp., Sun Microsystems Inc., Oracle Corp. and Sony Corp. all are scrambling to develop some form of Internet Box.

23.   Steve Paxton developed a form known as contact improvisation, in which people interacting can serve as symbols of social harmony.

24.   The alliance marks one of the most ambitious efforts yet to develop new forms of electronic commerce on the Internet, which has tens of millions of users worldwide.

25.   The company also will spend a substantial sum on its Microsoft Network online service to develop new forms of entertainment and news services on the Internet.

26.   The list grew longer when their younger son, Darren, developed a different form of asthma related to chronic sinus problems.

27.   The nonrunners, both men and women, were several times more likely to develop some form of disability during the eight-year period.

28.   The Penn team said the forms were developed and filled out as part of an internal review of the death.

29.   The two companies said they would work with others to develop new forms of interactive, digital services that can be displayed on a television or a computer screen.

30.   They plan to develop new forms of interactive, digital services.