1.  Microneedles permit transdermal delivery of a skin-impermeant medication to humans. Daniel P. Wermeling, Stan L. Banks, David A. Hudson, Harvinder S. Gill, Jyoti Gupta, Mark R. Prausnitz, Audra L. Stinchcomb
2. Clinical microneedle injection of methyl nicotinate: stratum corneum penetration. Raja K. Sivamani, Boris Stoeber, Gabriel C. Wu, Hongbo Zhai, Dorian Liepmann, Howard Maibach
3. Microneedling therapy in atrophic facial scars: An objective assessment. Imran Majid