TY - GEN AU - Sánchez Hernández,A AU - Mesía,R AU - Montes,A AU - Cardenal,F TI - [Chemoprevention in cancer of the head and neck] SN - 0001-6519 PY - 1997///0429 KW - Head and Neck Neoplasms KW - drug therapy KW - Humans KW - Retinoids KW - administration & dosage N1 - Publication Type: English Abstract; Journal Article; Review ER -