Do preterm male infants need more initial respiratory support than female infants?
The exact mechanisms responsible for the gender differences, with a better chance of survival of female infants, remain to be determined. The paper by Elsmén et al. provides an important contribution to this most important area of clinical research.
Levamisole, as used in this protocol, is a safe drug. When compared with the placebo, levamisole is not effective in the prophylactic treatment of recurrent aphthous stomatitis. The placebo effect is important in diseases where emotional factors affect recurrence or expression of symptoms.