Chemical abundances in the nuclear region of nearby galaxies from the Palomar Survey.

We acknowledge support from the Spanish MINECO grants AYA2016-76682C3-1-P, AYA2016-79724-C4, and PID2019-106027GB-C41. We also acknowledge financial support from the State Agency for Research of the Spanish MCIU through the ‘Center of Excellence Severo Ochoa’ award to the Instituto de Astrofisica de Andalucia (SEV-2017-0709). We acknowledge the fruitful discussions with our research team. BPD also acknowledges the support from CSIC grant JAEINT-19-00863. EPM acknowledges the assistance from his guide dog Rocko without whose daily help this work would have been much more difficult.