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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1982 1
1987 1
1990 1
2010 1
2014 1
2018 1
2019 4
2023 0

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Page 1
Geographic Characteristics of Loneliness in Primary Care.
Tong S, Mullen RA, Hochheimer CJ, Sabo RT, Liaw WR, Nease DE Jr, Krist AH, Frey JJ 3rd. Tong S, et al. Among authors: mullen ra. Ann Fam Med. 2019 Mar;17(2):158-160. doi: 10.1370/afm.2364. Ann Fam Med. 2019. PMID: 30858259 Free PMC article.
Loneliness in Primary Care Patients: A Prevalence Study.
Mullen RA, Tong S, Sabo RT, Liaw WR, Marshall J, Nease DE Jr, Krist AH, Frey JJ 3rd. Mullen RA, et al. Ann Fam Med. 2019 Mar;17(2):108-115. doi: 10.1370/afm.2358. Ann Fam Med. 2019. PMID: 30858253 Free PMC article.
Picosecond photorefractive effect in BaTiO(3).
Smirl AL, Valley GC, Mullen RA, Bohnert K, Mire CD, Boggess TF. Smirl AL, et al. Among authors: mullen ra. Opt Lett. 1987 Jul 1;12(7):501-3. doi: 10.1364/ol.12.000501. Opt Lett. 1987. PMID: 19741778