title: Direct inguinal herniation in men: a disease of collagen.
mesh_terms: D003094:Collagen / Q000032:analysis / Q000172:deficiency*; D003095:Collagen Diseases; D005205:Fascia / Q000032:analysis* / Q000648:ultrastructure; D006552:Hernia, Inguinal / Q000209:etiology*; D006801:Humans; D006909:Hydroxyproline / Q000032:analysis; D008297:Male; D008854:Microscopy, Electron
chemical_list: D003094:Collagen; D006909:Hydroxyproline