Fig. 4From: Use of human intra-tissue stem/progenitor cells and induced pluripotent stem cells for hair follicle regenerationApproaches for HF regeneration in vivo. In the chamber assay, mixture of keratinocytes and trichogenic dermal cells are transplanted into a silicone chamber on the back of immunodeficient mice. In the patch assay, cell mixture is directly injected into the hypodermis of immunodeficient miceBack to article page