Good suppliers are happy to describe their quality control procedures, but for maximum reliability researchers should try to do an entire series of experiments with antibodies from a single lot. (sciencemag.org)
They compared the results of this experiment with another test of game realism, where a single bespoke war game was modified to form two different games. (sciencedaily.com)
In a series of experiments in day - care facilities, infants and toddlers were allowed to handle four lightweight plastic jars. (discovermagazine.com)