Description: 435 chemistry: molecular biology and microbiology / 435 chemistry: molecular biology and microbiology/(4) measuring or testing process involving enzymes or micro-organisms; composition or test strip therefore; processes of forming such composition or test strip (7.1) involving antigen-antibody binding, specific binding protein assay or specific ligand-receptor binding assay (7.2) involving a micro-organism or cell membrane bound antigen or cell membrane bound receptor or cell membrane bound antibody or microbial lysate (7.21) animal cell (7.23) tumor cell or cancer cell
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