Hertwig epithelial root sheath

Hertwig’s epithelial root sheath

Hertwig’s epithelial root sheath HERS

Hertwig′s epithelial root sheath

epithelial sheath

external root sheath

hair root sheath

inner root sheath

Outer root sheath

outer root sheath bulge

Outer root sheath cells

root sheath

root-sheath

(1)arnebia root (2)gromwell root

Rhizoma et Radix Dysosmatis Common Dysosmatis Rhizome and Root / Sixangular Dysosmatis Rhizome and Root Bajiaolian

Advanced epithelial ovarian cancer

airway epithelial cell

airway epithelial cell line A549

airway epithelial cells