APA

Petraglia F., Di Blasio A. M., Florio P., Gallo R., Genazzani A. R., Woodruff T. K. & Vale W. (19970814). High levels of fetal membrane activin beta A and activin receptor IIB mRNAs and augmented concentration of amniotic fluid activin A in women in term or preterm labor. : The Journal of endocrinology.

Chicago

Petraglia F, Di Blasio A M, Florio P, Gallo R, Genazzani A R, Woodruff T K and Vale W. 19970814. High levels of fetal membrane activin beta A and activin receptor IIB mRNAs and augmented concentration of amniotic fluid activin A in women in term or preterm labor. : The Journal of endocrinology.

Harvard

Petraglia F., Di Blasio A. M., Florio P., Gallo R., Genazzani A. R., Woodruff T. K. and Vale W. (19970814). High levels of fetal membrane activin beta A and activin receptor IIB mRNAs and augmented concentration of amniotic fluid activin A in women in term or preterm labor. : The Journal of endocrinology.

MLA

Petraglia F, Di Blasio A M, Florio P, Gallo R, Genazzani A R, Woodruff T K and Vale W. High levels of fetal membrane activin beta A and activin receptor IIB mRNAs and augmented concentration of amniotic fluid activin A in women in term or preterm labor. : The Journal of endocrinology. 19970814.