FDA pregnancy categories References
    
        
        
            
        
            Born D, Barron ML. Herb Use in Pregnancy: What Nurses Should Know. MCN Am J Matern Child Nurs. 2005 May/June;30(3):201-206.
  de Groot RH, Hornstra G, van Houwelingen AC, et al. Effect of alpha-linolenic acid supplementation during pregnancy on... 
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