Instead, nearly all of the beta users made multiple introductions. (datingsitesreviews.com)
Multiple introductions in this manner give you a better read for how the dogs will do. (pbrc.net)
In 2008 she reported, «Available data support the hypothesis of multiple introductions of this invasive pathogen into South America and subsequent spread along the primary Andean cordilleras. (landscapesandcycles.net)