@article {24111,
	title = {action of growth factors on the release of HCG and HPL in the human placenta perfused in vitro},
	journal = {Egypt. J. Med. Sci.},
	volume = {14 (1)},
	year = {1993},
	pages = {33-40},
	author = {El- Sayed Fahim and Nagia, Z. Moharram and Soad, M. Gomaa}
}
