“Does grandchild care affect ageing satisfaction? Findings based on a nationally representative longitudinal study,” by Eleanor Quirke, Hans-Helmut König, and André Hajek (PLoS ONE 17(3): e0265600. doi.org/10.1371/journal.pone.0265600, XML, HTML, and .pdf format, 12p.).
journals.plos.org/plosone/article?id=10.1371/journal.pone.0265600