http://pec.lib.wvu.edu/record/P90561960Control of chronic respiratory disease III. Isolation of mycoplasma as infleunced by potentiated chlortetracycline and time interval after exposure.Journal article reprint from: <em>Avian diseases</em>, v.4:no.4 (1960:Nov.).Shelton, D. C.Olson, N. O.Heishman, J. O.Poultry--Diseases.Tetracyclines.Respiratory organs--Diseases--Research.14256