Vogel, Joshua P <br/><br/>
Global, regional and national levels and trends of preterm birth rates for 1990 to 2014: protocol for development of World Health Organization estimates.  [electronic resource] 

 -  Reproductive health  Jun 2016 
 - 76 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1742-4755 
<br/><br/><label>Standard No.: </label>10.1186/s12978-016-0193-1  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birth Rate<br/>Data Interpretation, Statistical<br/>Epidemiologic Research Design<br/>Gestational Age<br/>Humans<br/>Premature Birth--epidemiology<br/>World Health Organization