Suggested reading:

1. Conant EF, and Wechsler RJ. Actinomycosis and nocardiosis of the lung. J Thorac Imaging 1992;7(4):75-84.
2. Kramer MR, et al. Infectious complications in heart-lung transplantation. Arch Int Med 1993;153: 2010-16.
3. Chatwani A, et al. Incidence Actinomyces associated with IUD. J.Reproductive Med 1994:39(8):858-.