Estimates of use of preferred contraceptive method in the United States: a population-based studyResearch in context oleh Anu Manchikanti Gomez, Ariana H. Bennett, Jennet Arcara, Lisa Stern, Jamie Bardwell, Denicia Cadena, Aisha Chaudhri, Laura Davis, Christine Dehlendorf, Brittni Frederiksen, Catherine Labiran, Raegan McDonald-Mosley, Whitney S. Rice, Tara B. Stein, Ena Suseth Valladares, Megan L. Kavanaugh, Cassondra Marshall