[1] Univ Karachi, Int Ctr Chem & Biol Sci, HEJ Res Inst Chem, Karachi, Pakistan
[2] Univ Calif San Diego, Scripps Inst Oceanog, Ctr Marine Biotechnol & Biomed, La Jolla, CA 92093 USA
[3] King Abdulaziz Univ, Fac Sci, Dept Biochem, Jeddah, Saudi Arabia
[4] Shahid Beheshti Univ Med Sci, Phytochem Res Ctr, Tehran, Iran