Figure 3From: Sub-chronic inhalation of high concentrations of manganese sulfate induces lower airway pathology in rhesus monkeysBALT proliferation. Peribronchial BALT proliferation in a monkey exposed to the highest (1.5 mg Mn/m3) MnSO4 exposure concentration for 65 exposure days (right). Normal appearing BALT present in an air-exposed control monkey (left). (4×)Back to article page