Print version ISSN 0042-9686
Bull World Health Organ vol.88 n.5 Genebra May. 2010
In volume 88, Number 4, April 2010, p. 289, the 2nd sentence of the 2nd paragraph in the introduction should have read:
"Ecological studies have shown that populations with a greater per cent of births attended by a skilled professional have lower maternal and perinatal mortality..."