1. Dungworth D L, Castleman W L, Chow C K, Mellick P W, Mustafa M G., Tarkington B, and Tyler W S: Effect of ambient levels of ozone on monkeys.Fed. Proc.34: 1670–1674, 1975.
2.
2. Weibel ER: Morphological basis of alveolar-capillary gas exchange.Phys. Rev.53: 419–495, 1973.
3.
3. Kaszynski E, and Sauer R M: Bull. Soc. Pharm. Envion Path, Vol. VI, No. 2, 1978.
