“ Questions From Readers ” in The Watchtower of June 1, 1990, noted that plasma proteins (fractions) move from a pregnant woman’s blood to the separate blood system of her fetus.
„ Lugejate küsimusi ” („Vahitorn ”, 1. juuni 1990) märkis, et raseda naise verest siirduvad plasmaproteiinid (fraktsioonid) loote eraldi vereringesse.