Wittayalai, S.; Sathalalai, S.; Thorroad, S.; Worawittayanon, P.; Ruchirawat, S.; Thasana, N. Lycophlegmariols A-D: Cytotoxic Serratene Triterpenoids from the Club Moss Lycopodium phlegmaria L. Phytochemistry 2012, 76, 117–123.

Efficacy of Andrographis paniculata extract treatment in mild to moderate COVID-19 patients being treated with favipiravir: A double-blind, randomized, placebo-controlled study (APFaVi trial) Siripongboonsitti T, Ungtrakul T, Tawinprai K, Auewarakul C, Chartisathian W, Jansala T, Julsawad R, Soonklang K, Mahanonda N, Mahidol C Phytomedicine. 2023;119:155018.