1. 1. Bonaventura I Mir I Marcos JA. et al. Pancoast's syndrome: difficulties in its diagnosis. Rev Clin Esp. 1993; 193:435-437.
2. 2. Wygaarden JB Smith LH. Enfermedades del apáralo respiratorio. In: Tratado de Medicina Interna Cecil. 17th ed. McGraw-Hill interamericano; 1406-1408.
3. 3. Paulson DL. Extended resection of bronchial carcinoma in the superior pulmonary sulcus. In: Shields TW. Genera! Thoracic Surgery. 3rd ed. Philadelphia Pa: Lippincolt Williams & Wilkins: 1989:394-397.
4. 4. Murray JF. Nade JA. Pancoast tumor. In: Textbook of Respiratory Medicine. 2nd ed. Philadelphia Pa: WB Saunders; 1983:1578.
5. 5. Wilson JD Martin JB. Fauci AS. Kasper DL. Neoplasias pulmonares. In: Prwcrpivs de Medicina Interna de Harrison. 13th ed. McGraw-Hill Interamericano; 1994:507-514.