Anthony J. Kondracki & Sandra L. Hofferth. (2019). A gestational vulnerability window for smoking exposure and the increased risk of preterm birth: How timing and intensity of maternal smoking matter. BMC.
Chicago Style (17th ed.) CitationAnthony J. Kondracki and Sandra L. Hofferth. A Gestational Vulnerability Window for Smoking Exposure and the Increased Risk of Preterm Birth: How Timing and Intensity of Maternal Smoking Matter. BMC, 2019.
MLA (9th ed.) CitationAnthony J. Kondracki and Sandra L. Hofferth. A Gestational Vulnerability Window for Smoking Exposure and the Increased Risk of Preterm Birth: How Timing and Intensity of Maternal Smoking Matter. BMC, 2019.
Warning: These citations may not always be 100% accurate.