title: Editorial.
authors.affiliation: New York, NY, United States. Electronic address: y-cheng@popcbr.rockefeller.edu.
authors.forename: C
authors.initials: C
authors.lastname: Yan Cheng
mesh_terms: D002448:Cell Adhesion / Q000235:genetics*; D005854:Germ Cells / Q000254:growth & development* / Q000378:metabolism; D006801:Humans; D008297:Male; D013091:Spermatogenesis / Q000235:genetics*; D013737:Testis / Q000254:growth & development