Natural Product Research and Development, Volume 25, Issue 10,2013, Pages 1362-1366,
Natural Product Research and Development, Volume 25, Issue 10,2013, Pages 1325-1333,
Natural Product Research and Development, Volume 25, Issue 10,2013, Pages 1370-1375,
Natural Product Research and Development, Volume 25, Issue 10,2013, Pages 1423-1427,