'The Mexican yam yields diosgenin, a source for this arthritis-relieving steroid'
cortisone
MEDICINAL PLANTS: The Mexican yam yields diosgenin, a source for this arthritis-relieving steroid
The Mexican yam yields diosgenin, a source for this arthritis-relieving steroid
The Mexican yam yields diosgenin, a source for this arthritis-relieving steroid
MEDICINAL PLANTS
cortisone
MEDICINAL PLANTS