Authors:
Cui, BL
Lee, YH
Chai, H
Tucker, JC
Fairchild, CR
Raventos-Suarez, C
Long, B
Lane, KE
Menendez, AT
Beecher, CWW
Cordell, GA
Pezzuto, JM
Kinghorn, AD
Citation: Bl. Cui et al., Cytotoxic sesquiterpenoids from Ratibida columnifera, J NAT PROD, 62(11), 1999, pp. 1545-1550