B. Perera

Bacillus cereus cross-infection in a maternity-unit.

B. Birch, J. Kramer, P. Turnbull, 1981, The Journal of hospital infection.

Cardiac tamponade due to actinomycosis.

D. Ramsdale, R. Charles, P. Gautam, 1984, Thorax.

A study to assess the efficacy of chemoprophylaxis in the prevention of endoscopy-related bacteraemia in patients aged 60 and over.

G. L. Bhan, P. Taft, B. Perera, 1990, The Quarterly journal of medicine.