2 ms·

They are also essential to forming the placenta: https://en.wikipedia.org/wiki/HERV-W https://en.wikipedia.org/wiki/HERV-W https://en.wikipedia.org/wiki/HERV-

by nsajko 8y ago

They are also essential to forming the placenta: https://en.wikipedia.org/wiki/HERV-W https://en.wikipedia.org/wiki/HERV-W https://en.wikipedia.org/wiki/HERV-FRD https://en.wikipedia.org/wiki/HERV-FRD