(Whatever you deem best)

to see if there is any relationship between depression cortisol level and maternal stress as leading causes of preterm birth (pg. 24). Methodology To get the best information about the subject under study the researchers employed a comprehensive and a systematic method. They used a developmental study design. The authors used literature searches by reviewing various articles and researches done in the past. They developed their arguments and built upon the existing research. The literature search was conducted by accessing various electronic databases for articles done between 1970 and 2011. They used specific keywords such as antenatal stress cortisol and gestation age among others to get the most relevant articles (Pg 25). Findings The authors reviewed 49 articles that were found significant to the research. However only 22 were used as they contained the most relevant information. From the article it was noted that there is an undeniable relationship between stress and preterm birth...