The study of direct ELISA and competitive ELISA for rabbit metallothionein: correlation of induction with zinc Liu Ying, Zheng Junheng, Dang Weiwei, Ren Hongwei, Yu Meimin and Ru Binggen Analusis, 28 5 (2000) 361-366 DOI: 10.1051/analusis:2000280361