Table 2.

Distribution of the cases by gestational age.

Gestational age (weeks)	Case (n)	Gestational age (weeks)	Case (n)	Gestational age (weeks)	Case (n)
16	20	24	18	32	7
17	22	25	23	33	18
18	9	26	11	34	19
19	9	27	15	35	26
20	12	28	14	36	19
21	22	29	20	37	12
22	8	30	18	38	20
23	13	31	8	Total	363