Downie, A. W., Glenny, A. T., Parish, H. J., Smith, W., & Wilson, G. S. (1941). Combined Active and Passive Immunization against Diphtheria: I. Studies of Antitoxin Response in Normal Students.

Downie, A. W., A. T. Glenny, H. J. Parish, Wilson Smith, ja G. S. Wilson. Combined Active and Passive Immunization against Diphtheria: I. Studies of Antitoxin Response in Normal Students. 1941.

Downie, A. W., et al. Combined Active and Passive Immunization against Diphtheria: I. Studies of Antitoxin Response in Normal Students. 1941.