Lettieri L, Rodis JF, Vintzelios
et.al.
Ear length in second-trimester aneuploid
fetuses
Obstet Gynecol
1993;81:57-60
|
GA (wks) |
10th Percentile |
50th Percentile |
90th Percentile |
|
14 |
6 |
7 |
8 |
|
15 |
7 |
8 |
10 |
|
16 |
8 |
9 |
11 |
|
17 |
9 |
11 |
12 |
|
18 |
10 |
12 |
14 |
|
19 |
11 |
13 |
15 |
|
20 |
12 |
14 |
17 |
|
21 |
13 |
16 |
18 |
|
22 |
15 |
17 |
19 |
|
23 |
16 |
18 |
21 |
|
24 |
17 |
19 |
22 |
|
25 |
18 |
21 |
23 |