The most common lab tests have a very high false negative rate, making diagnoses even more difficult. (fransussman.com)
Most of us assume that all lab rats are the same, but there are several different strains of common lab rats. (science.howstuffworks.com)
«Rats and mice, the most common lab animals, can't tell us much about speech disorders, since their vocalizations are innate, not learned. (sciencedaily.com)