TY - GEN AU - Hovsepian,D M AU - Linskey,M E AU - Fedorak,R TI - Failing to detect occult blood SN - 0003-4819 PY - 1986///0925 KW - False Negative Reactions KW - Gastric Juice KW - Humans KW - Occult Blood N1 - Publication Type: Letter UR - https://doi.org/10.7326/0003-4819-105-3-471_1 ER -