Word: proved
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Dates: during 1970-1979
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...bureau by Hoover in 197 1 because he had disagreed too often with Hoover's ideas (TIME, Oct. 25, 1971), including Hoover's obsession with Communist subversion. The four possibilities were suggested to John Mitchell, who balked at the selection of anyone from within the FBI because he might prove to be just as independent of the White House as Hoover had been. Clearly the White House wanted to get control of the FBI. It was Mitchell who suggested Gray instead of Sullivan?and Nixon promptly approved that choice. Gray thus became heavily indebted to Mitchell...
...told Harvard is becoming professionalized, and the law and medical school candidates seemed to prove it last week. No doubt this new attitude of overpowering seriousness can be traced to a still tight job market and the smothering, sluggish prospect of four more years of Nixon politics, but it is frightening nonetheless. One hopes it is a temporary aberration...
...have been used successfully in bringing some cancers under control. But surgery usually results in unsightly and handicapping mutilation, radiation can destroy healthy as well as cancerous tissue, and chemotherapy produces unpleasant and dangerous side effects. Immunotherapy, which so far seems to have none of these disadvantages, could thus prove to be the ideal approach...
...Doctors had experimented with bone-marrow transplants in the mid-'50s, primarily to combat leukemia. But their efforts proved generally unsuccessful. Immunologically sound bone marrow contained cells that recognized the recipient of this gift as "foreign." The new cells, in a phenomenon known as "graft v. host" reaction, thus rejected the host, producing lymphocytes capable of reacting with and destroying his tissue. In fact, the reaction, combined with infection and other factors, could prove fatal to the recipient whose immune system was either weak or absent...
...once a major crippler of children, and rubella, or German measles, which can cause serious birth defects in the children of women who contract it while pregnant. It has led to a broader understanding of allergies and an effective method of preventing erythroblastosis fetalis, a blood condition that can prove fatal to infants shortly after birth...