This could go with other journal titles as well. Our institution subscribed to 2 titles through American College of Physicians with pretty extensive holdings. The titles can also be found via our subscription to ProQuest, but with more limited holdings. When users search for a title in Summon, they will only see the ProQuest holdings and then be told we do not carry the resource. I think adding more individual platforms to Resource Link Prioritization list will fix this. Thanks!