TY - GEN AU - ScherĂ¼bl,Hans AU - Zeitz,Martin TI - Esophageal cancer SN - 1533-4406 PY - 2004///0406 KW - Carcinoma, Squamous Cell KW - Esophageal Neoplasms KW - Head and Neck Neoplasms KW - Humans KW - Incidence KW - Neoplasms, Second Primary N1 - Publication Type: Comment; Letter ER -