81.  But the scientific evidence is less clear.

82.  But there is no scientific evidence to prove the connection.

83.  But there is scientific evidence, too.

84.  But these renderings are mostly artistic interpretations based on very sparse scientific evidence.

85.  But they said there was no scientific evidence that these people or any particular ethnic group were desensitized to pepper spray when it was sprayed in their eyes.

86.  But U.S. authorities verified the autopsy results, and scientific evidence was bolstered by a leadership war that ensued.

87.  But they were also inclined to forgive or at least excuse domestic abuse, and were often bored and sometimes confused by scientific evidence.

88.  But with the prospect of millions of AIDS deaths over the next decade, he must meet it forthrightly, based on the most reliable scientific evidence.

89.  But until now, rigorous scientific evidence to support this idea has been lacking.

90.  But, while few question the toxicity of mercury, scientific evidence linking the widely dispersed emissions from power plants to health risks was not.