{{:start:classes:principlesofdesign:biolung:2012-02-16_23.35.36.jpg|}} {{:start:classes:principlesofdesign:biolung:2012-02-16_23.59.50.jpg|}} {{:start:classes:principlesofdesign:biolung:2012-02-16_23.35.10.jpg|}} {{:start:classes:principlesofdesign:biolung:2012-02-16_23.34.57.jpg|}} {{:start:classes:principlesofdesign:biolung:2012-02-16_23.34.48.jpg|}}