设 ( L , ∨ , ∧ ) {\displaystyle (L,\vee ,\wedge )} 是一个格,若对于任意的 a , b , c ∈ L {\displaystyle a,b,c\in L} 有 a ∧ ( b ∨ c ) = ( a ∧ b ) ∨ ( a ∧ c ) {\displaystyle
013. Fritz H, Flower G, Weeks L, Cooley K, Callachan M, McGowan J, Skidmore B, Kirchner L, Seely D. Intravenous Vitamin C and Cancer: A Systematic Review