number

Percentage

Number of fetuses

・ No

10

3.3

・ Yes

290

96.7

Particularities of the examination conditions

・ No

6

2.0

・ Yes

294

98.0

Synthetic elements of biometrics

・ No

286

95.4

・ Yes

14

4.6

Morphological characteristics

・ No

12

4.0

・ Yes

288

96.0