Ultrasound-assisted extraction of alantolactone and isoalantolactone from Inula helenium roots
. Ultrasound-assisted extraction of alantolactone and isoalantolactone from Inula helenium roots. Pharmacognosy Magazine [Internet]. 2010;6(23):234-237. https://www.ncbi.nlm.nih.gov/pubmed/20931085
