1. The relationship between the pressure in the maxillary sinus and the so-called ostial resistance;Bachert,1986
2. Increased bacterial binding to respiratory epithelial cells in vitamin A deficiency;Chandra;Br. Med. J.,1988
3. Bacteriological nasal flora in newborns;Cvetnić,1988
4. Interpretative Medical Microbiology;Dalton,1986
5. Diagnostic Microbiology;Finengold,1982