Παραπομπή APA

Blomberg, M., Birch Tyrberg, R., & Kjølhede, P. (2014). Impact of maternal age on obstetric and neonatal outcome with emphasis on primiparous adolescents and older women: A Swedish Medical Birth Register Study. BMJ Open.

Παραπομπή Chicago Style

Blomberg, Marie, Rasmus Birch Tyrberg, και Preben Kjølhede. "Impact of Maternal Age On Obstetric and Neonatal Outcome With Emphasis On Primiparous Adolescents and Older Women: A Swedish Medical Birth Register Study." BMJ Open 2014.

Παραπομπή MLA

Blomberg, Marie, Rasmus Birch Tyrberg, και Preben Kjølhede. "Impact of Maternal Age On Obstetric and Neonatal Outcome With Emphasis On Primiparous Adolescents and Older Women: A Swedish Medical Birth Register Study." BMJ Open 2014.

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