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The increasing importance of herbicides in worldwide crop production
Pest Management Science, 2013exaly
Obstetric analgesia, twilight sleep, the barbiturates in labor
American Journal of Obstetrics and Gynecology, 1942openaire +2 more sources
Obstetric Management of Labor and Vaginal Delivery
2009Alan T.N. Tita, Dwight J. Rouse
openaire +1 more source