Declercq Eugene, Menacker Fay, MacDorman Marian
Maternal and Child Health Department, Boston University School of Public Health, 715 Albany Street, Boston, MA 02118-2526, USA.
BMJ. 2005 Jan 8;330(7482):71-2. doi: 10.1136/bmj.38279.705336.0B. Epub 2004 Nov 19.