Table 4.

Reports on round spermatid injection

Reference	Oocyte activation treatment	Fertilization rate (%)	Cases of pregnancy and delivery
Tesarik et al. (1995,96) 78 , 79	None	36	Two cases of pregnancy and delivery
Tanaka et al. (1996) 80	Electrostimulation	42	One case of pregnancy
Vanderzwalmen et al. (1997) 81	None	16	None
	A23187	36	One case of pregnancy
Antinori et al. (1997) 82	None	56	Two cases of pregnancy
Yamanaka et al. (1997) 83	None	69	None
Amer et al. (1997) 84	None	25	Four cases of pregnancy
Kahraman et al. (1998) 85	None	26	One case of pregnancy
Barak et al. (1998) 86	None	27	One case of pregnancy and delivery
Al‐Hasani et al. (1999) 87	None	18	None
Ghazzawi et al. (1999) 88	None	22	None
Levran et al. (2000) 89	None	44.9	None
Vicdan et al. (2001) 90	None	–	None (0/6)
Khalili et al. (2002) 91	None	–	None (0/7)
Sousa et al. (2002) 92	None	16	None (0/33)
Saremi et al. (2002) 93	None	–	One case of pregnancy and delivery
Amarin et al. (2002) 94	None	–	One case of pregnancy
Ulug et al. (2003) 95	None	42	None
Benkhalifa et al. (2004) 96	None	36	None