The retinoic acid like activity of these compounds is confirmed through the classic measure of {TAIL ~ retinoic acid activity} involving {HEAD ~ the effects} of retinoic acid on ornithine decarboxylase 
The retinoic acid like activity of these compounds is confirmed through the classic measure of { TAIL ~ retinoic acid activity } involving { HEAD ~ the effects } of retinoic acid on ornithine decarboxylase
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH