25925
A series of bisbenzaldehydes and structurally related analogs , conveniently synthesized via microwave - assisted reactions , were evaluated in vitro against drug susceptible and multi - drug resistant Mycobacterium tuberculosis , against virulent Mycobacterium bovis , against Mycobacterium ulcerans and against two Mycobacterium avium subspecies .
 Chemical: bisbenzaldehydes
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
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Answer:
 Chemical: bisbenzaldehydes