autoradiography of skin sections incubated with 125i-labelled egf in vitro or of sections from skin which was perfused with 125i-labelled egf in vivo demonstrated that egf receptors were localized in undifferentiated cells of the epidermis and sebaceous glands , the inner and outer root sheath and bulb of wool follicles and in dermal arterioles .
C0221964
outer root sheath
C0221971
follicles