1. H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
2. Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, USA
3. Faculty of Science, Department of Biochemistry, King Abdulaziz University, Jeddah, Saudi Arabia
4. Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran