1. PhytoQuest Limited, Plas Gogerddan, Aberystwyth, Ceredigion, SY233EB, UK;
2. Department of Biochemistry, University of Yaoundé I, Yaoundé, Cameroon
3. TreatAid, 226, Second Floor, Paras Trade Centre, Sector 2, Gwal Pahari, Gurgaon - 122 003, Delhi NCR, India
4. Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé,
Cameroon