D.R Simorangkir, S Ramaswamy, G.R Marshall, C.R Pohl and T.M. Plant
Human Reproduction 24 ( 7 ): 1584 - 1595 , 2009
D.R Simorangkir, G.R Marshall and T.M. Plant
Human Reproduction 24 ( 7 ): 1596 - 1604 , 2009