Editorial: Sustaining Innovation in Compassionate Free-Roaming Cat Management Across the Globe: A Decadal Reappraisal of the Practice and Promise of Trap-Neuter-Vaccinate-Return (TNVR) - Schaffner, Joan E.; Wandesforde-Smith, Geoffrey; Wolf, Peter Joseph; Levy, Julie; Riley, Sophie; Farnworth, Mark James (Frontiers in Veterinary Science, 2019)