Figure 1
Microneedle roller. Representative images of the microneedle roller (A) and a 200 μm microneedle (B); C shows the microneedle roller application procedure.
Figure 1 | BMC Pharmacology and Toxicology
Microneedle roller. Representative images of the microneedle roller (A) and a 200 μm microneedle (B); C shows the microneedle roller application procedure.