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Xu M, Thomas PA, Umberson D.Xu M, et al. Among authors: thomas pa.J Gerontol B Psychol Sci Soc Sci. 2016 Jan;71(1):165-76. doi: 10.1093/geronb/gbv014. Epub 2015 Mar 12.J Gerontol B Psychol Sci Soc Sci. 2016.PMID: 25765315Free PMC article.
Upenieks L, Thomas PA.Upenieks L, et al. Among authors: thomas pa.J Aging Health. 2023 Jun;35(5-6):405-418. doi: 10.1177/08982643221135689. Epub 2022 Nov 2.J Aging Health. 2023.PMID: 36321397
Umberson D, Thomeer MB, Williams K, Thomas PA, Liu H.Umberson D, et al. Among authors: thomas pa.J Gerontol B Psychol Sci Soc Sci. 2016 Sep;71(5):902-13. doi: 10.1093/geronb/gbv091. Epub 2015 Nov 19.J Gerontol B Psychol Sci Soc Sci. 2016.PMID: 26589348Free PMC article.