title: TNM classification: clarification of number of regional lymph nodes for pNo.
authors.affiliation: UICC TNM Committee, Division of Gastrointestinal Pathology, Armed Forces Institute of Pathology, Washington, District of Columbia 20306, USA. sobin@aifp.osd.mil
authors.forename: L H
authors.initials: LH
authors.lastname: Sobin
authors.forename: F L
authors.initials: FL
authors.lastname: Greene
mesh_terms: D015179:Colorectal Neoplasms / Q000473:pathology*; D006801:Humans; D008197:Lymph Node Excision; D008207:Lymphatic Metastasis; D009367:Neoplasm Staging; D009369:Neoplasms / Q000473:pathology*; D017410:Practice Guidelines as Topic