TY - GEN AU - Barton,D P TI - Maternal posture in second stage and fetal acid base status SN - 0306-5456 PY - 1988///0505 KW - Acid-Base Equilibrium KW - Female KW - Fetus KW - physiology KW - Humans KW - Labor Stage, Second KW - Labor, Obstetric KW - Posture KW - Pregnancy N1 - Publication Type: Letter UR - https://doi.org/10.1111/j.1471-0528.1988.tb06854.x ER -