I am studying a topic on the effects of drinking alcoholic beverages on the health and development of a breastfed baby and I came across the following statement:
The results of this study have not been duplicated, however.
The fact is that I could not extract any meaning out of this sentence and I really appreciate if you could help me with this.
The previous statement is as follows (if it helps any):
In a landmark study of 400 breastfed babies, gross motor development at 1 year of age lagged in infants whose mothers drank at least one drink daily during the babies' first three months of life.