Hamadan University of Medical Sciences Avicenna Journal of Environmental Health Engineering 2423-4583 4 2 2017 12 20 The Role of Mycobacteria in Biodegradation 38 39 10.15171/ajehe.2017.08 EN Masoud Keikha https://orcid.org/0000-0003-1208-8479 LETTER 10.15171/ajehe.2017.08 2017 09 30 2017 11 29