21.   He says Harvard should not change its rules involving research on human subjects.

22.   Human subjects nevertheless have produced more protective antibodies after vaccination than the chimps.

23.   In American research with human subjects, studies are proposed by scientists and reviewed for safety and ethics at the university or medical center by an institutional review board.

24.   In larger tests, they turned out not to be aphrodiasiacs as expected but rather they seemed to boost self-esteem among a high percentage of the human subjects.

25.   In its Code of Conduct for International Space Station Crew, NASA does not mention sex, but it does not specifically ban sexual research involving human subjects either.

26.   In such experiments, a different word is introduced simultaneously into each ear of a human subject.

27.   In the wake of the death, the federal government last week suspended all federally financed medical research involving human subjects at Johns Hopkins Medical Institutes.

28.   It has all the characteristics of a fan letter, most notably a tendency to lionize its all too human subject.

29.   Its license to continue research using human subjects in federally financed experiments was placed under review, Carome said, until it implements a plan to correct the deficiencies.

30.   Martin alluded to a series of cases around the nation in which major research institutions have been found to violate rules governing protection of human subjects.