Hug, K. (2008). “Motivation to donate or not donate surplus embryos for stem-cell research: Literature review”. Fertility and Sterility. 89 (2): 263–277. doi:10.1016/j.fertnstert.2007.09.017. PMID18166188.
nih.gov
pubmed.ncbi.nlm.nih.gov
Hug, K. (2008). “Motivation to donate or not donate surplus embryos for stem-cell research: Literature review”. Fertility and Sterility. 89 (2): 263–277. doi:10.1016/j.fertnstert.2007.09.017. PMID18166188.