Figure 1From: The standardized herbal formula, PM014, ameliorated cigarette smoke-induced lung inflammation in a murine model of chronic obstructive pulmonary disease Schematic diagram of the experimental protocol. Specific pathogen-free, 7-week-old, female balb/c mice were administered cigarettes on days 0 to 1, 4 to 8, and 11 to 13, as outlined above in the general exposure procedures. The mice were sacrificed on day 14.Back to article page