TY - GEN AU - Rook,G A TI - Clean living increases more than just atopic disease SN - 0167-5699 PY - 2000///0622 KW - Animals KW - Child KW - Child, Preschool KW - Humans KW - Hypersensitivity KW - immunology KW - Th1 Cells KW - Th2 Cells N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1016/s0167-5699(00)01630-3 ER -