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Member for
3 ปี 7 เดือนAge: 17+
Level: 11+
Language: English
(en)
ไอดี: 621424
09/01/2021
Country code: IN
Country: India
Main content: Placenta types (1241241)
Placenta may be classified on the basis of layers of tissue separating the maternal and foetal blood or on the basis of distribution of villi and even on the basis of intimacy between foetal and maternal tissues.
Other contents: Classification of Placenta
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