1. College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea,
2. Virology Unit, Department of Horticultural Environment, National Institute of Horticultural and Herbal Science, RDA, Jeollabuk-Do, Republic of Korea,
3. Institute of Marine Biochemistry, and
4. Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam