FINE, P (1 November 1995). "Variation in protection by BCG: implications of and for heterologous immunity". The Lancet346 (8986): 1339–1345. doi:10.1016/S0140-6736(95)92348-9. பப்மெட்:7475776.
FINE, P (1 November 1995). "Variation in protection by BCG: implications of and for heterologous immunity". The Lancet346 (8986): 1339–1345. doi:10.1016/S0140-6736(95)92348-9. பப்மெட்:7475776.