Open PHACTS Linksets 2.1.1

Research Object RO-Crate of the aggregated linksets used by Open PHACTS 2.1. Republished, previously published on http://data.openphacts.org/2.1/ims/linksets/ by VU, which as of 2021-04-20 is offline. Note that the referenced linkset ops-rsc-surechembl-linksets is published separately, as its license is CC-BY-ND. <strong>Note:</strong> This is a release candidate as some license information is still incomplete in the RO-Crate