Haemoglobin levels among pregnant women in the Polonnaruwa District - Siyambalagoda, R.R.M.L.R.; Perera, P.A.J.; Wikramasinghe, A.R.; Sumanaweera, N.P.; Wijesinghe, T.S.; De Zoysa, D.N.N.; Maniwannam, S.; Wikramasinghe, W.K.; Wijesinghe, P.R. (My University, 2003)