Bioassay Guided Isolation of Topoisomerase Ι Poison from Paphiopedilum callosum (Rchb.f.) Stein

Authors

San Yoon Nwe

Chayapol Tungphatthong

Areerat Laorpaksa

Boonchoo Sritularak

Witchuda Thanakijcharoenpath

Somboon Tanasupawat

Suchada Sukrong