APA

Vogel J. P., Chawanpaiboon S., Watananirun K., Lumbiganon P., Petzold M., Moller A., Thinkhamrop J., Laopaiboon M., Seuc A. H., Hogan D., Tunçalp O., Allanson E., Betrán A. P., Bonet M., Oladapo O. T. & Gülmezoglu A. M. (20170518). Global, regional and national levels and trends of preterm birth rates for 1990 to 2014: protocol for development of World Health Organization estimates. : Reproductive health.

Chicago

Vogel Joshua P, Chawanpaiboon Saifon, Watananirun Kanokwaroon, Lumbiganon Pisake, Petzold Max, Moller Ann-Beth, Thinkhamrop Jadsada, Laopaiboon Malinee, Seuc Armando H, Hogan Daniel, Tunçalp Ozge, Allanson Emma, Betrán Ana Pilar, Bonet Mercedes, Oladapo Olufemi T and Gülmezoglu A Metin. 20170518. Global, regional and national levels and trends of preterm birth rates for 1990 to 2014: protocol for development of World Health Organization estimates. : Reproductive health.

Harvard

Vogel J. P., Chawanpaiboon S., Watananirun K., Lumbiganon P., Petzold M., Moller A., Thinkhamrop J., Laopaiboon M., Seuc A. H., Hogan D., Tunçalp O., Allanson E., Betrán A. P., Bonet M., Oladapo O. T. and Gülmezoglu A. M. (20170518). Global, regional and national levels and trends of preterm birth rates for 1990 to 2014: protocol for development of World Health Organization estimates. : Reproductive health.

MLA

Vogel Joshua P, Chawanpaiboon Saifon, Watananirun Kanokwaroon, Lumbiganon Pisake, Petzold Max, Moller Ann-Beth, Thinkhamrop Jadsada, Laopaiboon Malinee, Seuc Armando H, Hogan Daniel, Tunçalp Ozge, Allanson Emma, Betrán Ana Pilar, Bonet Mercedes, Oladapo Olufemi T and Gülmezoglu A Metin. Global, regional and national levels and trends of preterm birth rates for 1990 to 2014: protocol for development of World Health Organization estimates. : Reproductive health. 20170518.