References

 Jarrousse F, Boisnic S, Branchet MC, Beranger JY, Godeau G, Breton L, Bernard BA, Mahe YF. Identification of clustered cells in human hair follicle responsible for MMP-9 gelatinolytic activity: consequences for the regulation of hair growth. Int J Dermatol. 2001 Jun;40(6):385-92. PMID: #11589743#