E. Zelaya

发表

J. Liljestrand, L. Persson, F. Marín, 1997, The Journal of adolescent health : official publication of the Society for Adolescent Medicine.

J. Liljestrand, R. Peña, L. Persson, 1996, Contraception.

J. Liljestrand, R. Peña, L. Persson, 1999, Journal of epidemiology and community health.

Staffan Berglund, J. Liljestrand, Jerker Liljestrand, 1997 .

C. Källestål, R. Peña, L. Persson, 2018, International Journal for Equity in Health.