[N-factor in the surgical management of lung neoplasms: studies with mediastinoscopy].
D000818:Animals; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis*; D008207:Lymphatic Metastasis / Q000175:diagnosis*; D008479:Mediastinal Neoplasms / Q000175:diagnosis*; D008481:Mediastinoscopy; D011817:Rabbits