TY - RPRT TI - Microneedles and transdermal applications. AU - Raja K Sivamani AU - Dorian Liepmann AU - Howard I Maibach PY - 2007 DO - 10.1517/17425247.4.1.19 UR - https://pubmed.ncbi.nlm.nih.gov/17184159/ ID - 17184159 ER -