TY - GEN AU - Utkin,V M AU - Chikin,V G TI - [Potassium and sodium levels in the blood of the mother and twins immediately after birth] SN - 0042-8825 PY - 1971///0108 KW - Female KW - Humans KW - Maternal-Fetal Exchange KW - Potassium KW - blood KW - Pregnancy KW - Sodium KW - Twins N1 - Publication Type: Journal Article ER -