Verde-Aguilera, Luis Angel, Natalia de Jesus Medina-Llamas, Sergio Antonio Covarrubias-Cornelio, Paul Miguel Ortega-Martinez, and Horacio Orozco-Flores. 2026. “Non-Invasive Assessment of Fetal Lung Maturity: The Role of Pulmonary Artery Doppler and AT/ET Ratio in Predicting Respiratory Distress Syndrome”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 15 (8):3351-57. https://doi.org/10.18203/2320-1770.ijrcog20262591.