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2. The DHS Program STATcompiler (online database of demographic and health surveys: Philippines 1993, 1998, 2003, 2008, 2013). 2015. https://statcompiler.com/en/ . Accessed 28 Feb 2018.
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4. Adolescent pregnancy fact sheet. World Health Organization; 2018. http://www.who.int/en/news-room/fact-sheets/detail/adolescent-pregnancy . Accessed 28 Feb 2018.
5. Guidelines on preventing early pregnancy and poor Reprod Health outcomes among adolescents in developing countries. World Health Organization; 2011. http://www.who.int/reproductivehealth/publications/adolescence/9789241502214/en/ .