TY  - GEN
AU  - Gülmezoglu,A Metin
AU  - Say,Lale
AU  - Betrán,Ana P
AU  - Villar,Jose
AU  - Piaggio,Gilda
TI  - WHO systematic review of maternal mortality and morbidity: methodological issues and challenges
SN  - 1471-2288
PY  - 2004///1109
KW  - Adult
KW  - Cohort Studies
KW  - Cross-Sectional Studies
KW  - Female
KW  - Global Health
KW  - Humans
KW  - Incidence
KW  - Maternal Mortality
KW  - trends
KW  - Pregnancy
KW  - Pregnancy Complications
KW  - epidemiology
KW  - Prevalence
KW  - World Health Organization
N1  - Publication Type: Comparative Study; Journal Article; Review; Systematic Review
UR  - https://doi.org/10.1186/1471-2288-4-16
ER  -