Before revision: They frequently use squatting, standing, kneeling and all fours positions, often in a sequence.Engelmann GJ Labor among primitive peoples (1883) They are referred to as upright birth positionsNon-Supine (e.g., Upright or Side-Lying) Positions for Birth.
After revision: They frequently use squatting, standing, kneeling and all fours positions, often in a sequence.Engelmann GJ Labor among primitive peoples (1883) They are referred to as upright birth positions.Non-Supine (e.g., Upright or Side-Lying) Positions for Birth.