1. New England Biolabs, Ipswich, Massachusetts, USA
2. Institute of Marine and Environmental Technology, Department of Microbiology and Immunology, University of Maryland, Baltimore, Baltimore, Maryland, USA
3. Instituto de Investigaciones para la Industria Química, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Salta, Salta, Argentina
4. Department of Pathology, Microbiology and Forensic Medicine, School of Medicine, The University of Jordan, Amman, Jordan