Table 1.

Prenatal diagnosis performed on 50 mothers of probands

Family No.	Carrier status of mother	Prenatal diagnosis
P4	Yes	NF
P91	No	dNF
P27	No	NF
P35	No	NF
P36	No	NF
P48	No	NM
P51	No	NF
P52	No	NF
P74	No	NM
P56	No	NF
P57	No	NF
P60	No	NF
P62	Yes	NF
P63	Yes	NM
P65	Yes	Carrier
P67	Yes	Carrier
P68	Yes	NF
P11	Yes	NM
P7	No	NF
P40	No	NF
P84	Yes	Patient
P46	No	NF1/NM2
P69	No	NF
P16	Yes	Patient
P20	Yes	NF
P86	Yes	Patient
P92	Yes	Patient
P94	Yes	NF
P95	Yes	NM
P96	Yes	NF
P97	Yes	Patient1/Carrier2
P31	Yes	NM
P39	Yes	dNF
P73	Yes	NF
P43	Yes	Patient
P49	Yes	Carrier
P50	Yes	Patient
P58	Yes	NF
P77	Yes	NM
P30	Yes	NM
P80	Yes	NF
P18	Yes	NF
P34	Yes	NF
P8	Yes	NM
P15	No	NM
P33	Yes	Patient1/NM2
P12	Yes	NF
P32	Yes	NF
P76	Yes	NF
P82	Yes	Carrier

^1/2: number of pregnance; NF: normal female fetuses; NM: normal male fetuses; d: double fetuses