{HEAD ~ Methanotrophic microorganisms} 21 are generally defined as those microorganisms which can derive energy from the utilization of methane 19, specifically by {TAIL ~ oxidation} 
{ HEAD ~ Methanotrophic microorganisms } 21 are generally defined as those microorganisms which can derive energy from the utilization of methane 19 , specifically by { TAIL ~ oxidation }
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