Maarit Niinimäki, Satu Suhonen, Maarit Mentula, Elina Hemminki, Oskari Heikinheimo, Mika Gissler et al
Niinimäki M, Suhonen S, Mentula M, Hemminki E, Heikinheimo O, Gissler M et al.
Comparison of rates of adverse events in adolescent and adult women undergoing medical abortion: population register based study
BMJ 2011; 342 :d2111
doi:10.1136/bmj.d2111