Charles River Labs has acquired Molecular Imaging Research, Inc. (MIR Preclinical Services) for approximately $12.5 million in cash. MIR, based in Ann Arbor, MI, provides discovery services using extensive in vivo imaging capabilities to pharmaceutical and biotechnology clients.     MIR offers non-GLP preclinical efficacy testing services with expertise in the therapeutic areas of oncology and inflammation, employing a variety of in vivo imaging techniques. MIR applies a wide array of high-t...