title: Reply to Chen and Liu: Role of GDNF from peritubular myoid cells in the testis stem cell niche.
authors.affiliation: Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709 eddy@niehs.nih.gov.
authors.forename: Edward M
authors.initials: EM
authors.lastname: Eddy
authors.affiliation: Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709.
authors.forename: Liang-Yu
authors.initials: LY
authors.lastname: Chen
mesh_terms: D005109:Extracellular Matrix; D051100:Glial Cell Line-Derived Neurotrophic Factor; D008297:Male; D012671:Seminiferous Tubules; D012708:Sertoli Cells; D055153:Stem Cell Niche; D013737:Testis
chemical_list: D051100:Glial Cell Line-Derived Neurotrophic Factor