Citazione APA

Roberts, C. L., Ford, J. B., Algert, C. S., Antonsen, S., Chalmers, J., Cnattingius, S., . . . Weir, C. J. (2011). Population-based trends in pregnancy hypertension and pre-eclampsia: An international comparative study. BMJ Group.

Stile di citazione Chicago

Roberts, Christine L., et al. Population-based Trends in Pregnancy Hypertension and Pre-eclampsia: An International Comparative Study. BMJ Group, 2011.

Citazione MLA

Roberts, Christine L., et al. Population-based Trends in Pregnancy Hypertension and Pre-eclampsia: An International Comparative Study. BMJ Group, 2011.

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