fetal heart circulation
9 years ago 00:04:02 21
1 year ago 00:01:01 1
13 years ago 00:01:11 54
7 years ago 00:02:17 342
9 years ago 00:02:44 2
3 years ago 00:00:48 1
3 years ago 00:06:44 31
10 years ago 00:05:17 5
10 years ago 00:05:39 4
11 years ago 00:02:32 12
4 years ago 00:02:02 1
6 years ago 00:26:45 1
5 years ago 00:00:48 1
11 years ago 00:02:23 17
1 year ago 00:01:48 1
8 years ago 00:03:37 2
3 years ago 00:46:24 6
5 years ago 00:04:07 1
5 years ago 00:02:33 1
4 years ago 00:10:10 1
12 months ago 00:05:28 1
5 years ago 00:09:47 5
3 years ago 00:10:03 1
9 years ago 00:05:54 59
