TY - GEN AU - Ordóñez,A AU - Espinosa,E AU - González Barón,M TI - [Field cancerization: a current concept] SN - 0014-2565 PY - 1994///0909 KW - Humans KW - Male KW - Middle Aged KW - Neoplasms, Multiple Primary KW - Neoplasms, Second Primary N1 - Publication Type: Case Reports; Letter ER -