Eugene Declercq, Fay Menacker, Marian MacDorman
Declercq E, Menacker F, MacDorman M.
Rise in "no indicated risk" primary caesareans in the United States, 1991-2001: cross sectional analysis
BMJ 2004; :bmj;bmj.38279.705336.0Bv1
doi:10.1136/bmj.38279.705336.0B