APA

Houtzager B. A., Hogendoorn S. M., Papatsonis D. N. M., Samsom J. F., van Geijn H. P., Bleker O. P. & van Wassenaer A. G. (20060516). Long-term follow up of children exposed in utero to nifedipine or ritodrine for the management of preterm labour. : BJOG : an international journal of obstetrics and gynaecology.

Chicago

Houtzager B A, Hogendoorn S M, Papatsonis D N M, Samsom J F, van Geijn H P, Bleker O P and van Wassenaer A G. 20060516. Long-term follow up of children exposed in utero to nifedipine or ritodrine for the management of preterm labour. : BJOG : an international journal of obstetrics and gynaecology.

Harvard

Houtzager B. A., Hogendoorn S. M., Papatsonis D. N. M., Samsom J. F., van Geijn H. P., Bleker O. P. and van Wassenaer A. G. (20060516). Long-term follow up of children exposed in utero to nifedipine or ritodrine for the management of preterm labour. : BJOG : an international journal of obstetrics and gynaecology.

MLA

Houtzager B A, Hogendoorn S M, Papatsonis D N M, Samsom J F, van Geijn H P, Bleker O P and van Wassenaer A G. Long-term follow up of children exposed in utero to nifedipine or ritodrine for the management of preterm labour. : BJOG : an international journal of obstetrics and gynaecology. 20060516.