[The principle of the opening to specialties?].
D005260:Female; D006801:Humans; D008297:Male; D009773:Obstetric Nursing / Q000331:legislation & jurisprudence*; D011247:Pregnancy; D013030:Spain; D013041:Specialties, Nursing / Q000331:legislation & jurisprudence*
El principio de apertura a las especialidades?