Kindle
发表于 2025-3-26 23:28:46
Gestational Changes,esoderm, converting them into secondary villi (Figs. 265, 266). From approximately the 20th day on, capillaries form within the mesoderm, and the villi are then referred to as tertiary villi (Figs. 267, 268). The fetal erythrocytes, at first nucleated, loose their nuclei gradually by the tenth to 12th week of pregnancy.
Affectation
发表于 2025-3-27 03:33:20
8楼
无动于衷
发表于 2025-3-27 06:01:45
9楼
maverick
发表于 2025-3-27 11:31:46
9楼
原谅
发表于 2025-3-27 14:51:06
9楼
高贵领导
发表于 2025-3-27 20:10:57
9楼
gentle
发表于 2025-3-28 01:20:44
10楼
Cocker
发表于 2025-3-28 02:11:16
10楼
Abjure
发表于 2025-3-28 08:21:48
10楼
Arboreal
发表于 2025-3-28 11:50:12
10楼