1. A disposable plastic isolator for operating in a sterile environment;Levenson,1960
2. A plastic isolator for operating in a sterile environment;Levenson;Am. J. Surg.,1962
3. Introduction. P. I;Trexler,1960
4. The Germfree Technique and Its Application to Rearing Animals Free from Contamination. Micrurgical and Germfree Methods;Reyniers,1943
5. Lightweight stainless steel systems for rearing germfree animals;Gustafsson;Ann. N. Y. Acad. Sci.,1959