Unexpected reduction in the incidence of birth trauma and birth asphyxia related to instrumental deliveries during the study period: was this the Hawthorne effect?
| Autor: | Leung, W.C *, Lam, H.S.W, Lam, K.W, To, M, Lee, C.P |
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| Zdroj: | In BJOG: An International Journal of Obstetrics and Gynaecology 2003 110(3):319-322 |
| Databáze: | ScienceDirect |
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