An S, Haga H, Niino N, Morita A, Iwata A. Effectiveness of positive psychology-based depression prevention programs among community-dwelling older adults Japanese Journal of Human Sciences of Health-Social Services. 2021; 28 (1): 1-13.

Morita A, Fujiwara T. Association between Childhood Suicidal Ideation and Geriatric Depression in Japan: A Population-Based Cross-Sectional Study. Int J Environ Res Public Health. 2020.04; 17 (7): 2257. ( PubMed, DOI )

Jung SH, Han HW, Koh H, Yu SY, Nawa N, Morita A, Ong KIC, Jimba M, Oh J. Patients help other patients: Qualitative study on a longstanding community cooperative to tackle leprosy in India. PLOS Neglected Tropical Diseases. 2020.01; 14 (1): e0008016. ( PubMed, DOI )

Morita A, Ochi M, Isumi A, Fujiwara T. Association between grandparent coresidence and weight change among first-grade Japanese children. Pediatric Obesity. 2019.08; 14 (8): e12524. ( PubMed, DOI )

Morita A, Matsuyama Y, Isumi A, Doi S, Ochi M, Fujiwara T. Association between grandparent co-residence, socioeconomic status and dental caries among early school-aged children in Japan: A population-based prospective study. Scientific reports. 2019.08; 9 (1): 11345. ( PubMed, DOI )

Nishizawa T, Morita A, Fujiwara T, Kondo K. Association between Childhood Socioeconomic Status and Subjective Memory Complaints Among Older Adults: Results from the Japan Gerontological Evaluation Study 2010. INTERNATIONAL PSYCHOGERIATRICS. 2019.07; 1-9. ( PubMed, DOI )

Morita A, O'Caoimh R, Murayama H, Molloy DW, Inoue S, Shobugawa Y, Fujiwara T. Validity of the Japanese Version of the Quick Mild Cognitive Impairment Screen. International journal of environmental research and public health. 2019.03; 16 (6): ( PubMed, DOI )

Horwood PF, Soli KW, Maure T, Naito YI, Morita A, Natsuhara K, Tadokoro K, Baba J, Odani S, Tomitsuka E, Igai K, Larkins JA, Siba PM, Pomat W, McBryde ES, Umezaki M, Greenhill AR. A High Burden of Asymptomatic Gastrointestinal Infections in Traditional Communities in Papua New Guinea. The American journal of tropical medicine and hygiene. 2017.12; 97 (6): 1872-1875. ( PubMed, DOI )

Tomitsuka Eriko, Igai Katsura, Tadokoro Kiyoshi, Morita Ayako, Baba Jun, Suda Wataru, Greenhill Andrew R., Horwood Paul F., Soli Kevin W., Siba Peter M., Odani Shingo, Natsuhara Kazumi, Morita Hidetoshi, Umezaki Masahiro. Profiling of faecal water and urine metabolites among Papua New Guinea highlanders believed to be adapted to low protein intake METABOLOMICS. 2017.09; 13 (9): ( DOI )

Rarau P, Vengiau G, Gouda H, Phuanukoonon S, Kevau IH, Bullen C, Scragg R, Riley I, Marks G, Umezaki M, Morita A, Oldenburg B, McPake B, Pulford J.. The prevalence of non-communicable disease risk factors in three sites across Papua New Guinea: A cross-sectional study. BMJ Global Health. 2017.06; １４

Jutarat Rakprasit, Keiko Nakamura, Kaoruko Seino, Ayako Morita. Healthcare use for communicable diseases among migrant workers in comparison with Thai workers. Ind Health. 2017.02; 55 (1): 67-75. ( PubMed, DOI )

Rakprasit Jutarat, Nakamura Keiko, Seino Kaoruko, Morita Ayako. Healthcare use for communicable diseases among migrant workers in comparison with Thai workers Industrial Health. 2017.01; 55 (1): 67-75. ( ichushi )

Rarau P, Vengiau G, Gouda H, Phuanukoonon S, Kevau IH, Bullen C, Scragg R, Riley I, Marks G, Umezaki M, Morita A, Oldenburg B, McPake B, Pulford J. Prevalence of non-communicable disease risk factors in three sites across Papua New Guinea: a cross-sectional study. BMJ global health. 2017; 2 (2): e000221. ( PubMed, DOI )

Shafiqullah H,Morita A,Nakamura K, Seino K .. The family planning conundrum in Afghanistan Health Promotion International. 2016.10;

Katsura Igai, Manabu Itakura, Suguru Nishijima, Hirohito Tsurumaru, Wataru Suda, Takumi Tsutaya, Eriko Tomitsuka, Kiyoshi Tadokoro, Jun Baba, Shingo Odani, Kazumi Natsuhara, Ayako Morita, Minoru Yoneda, Andrew R Greenhill, Paul F Horwood, Jun-Ichi Inoue, Moriya Ohkuma, Yuichi Hongoh, Taro Yamamoto, Peter M Siba, Masahira Hattori, Kiwamu Minamisawa, Masahiro Umezaki. Nitrogen fixation and nifH diversity in human gut microbiota. Sci Rep. 2016.08; 6 31942. ( PubMed, DOI )

Ayako Morita, Kazumi Natsuhara, Gwendalyn Vengiau, Cindy Chia-Jung Chen, Shingo Odani, Tsukasa Inaoka, Kiyoshi Tadokoro, Kazuhiro Suda, Takuro Furusawa, Peter Siba, Suparat Phuanukoonnon, Masahiro Umezaki. Reduced morning cortisol concentration in saliva was associated with obesity: Evidence from community-dwelling adults in papua new guinea. Am. J. Hum. Biol.. 2016.01; ( PubMed, DOI )

Masahiro Umezaki, Yuichi I Naito, Takumi Tsutaya, Jun Baba, Kiyoshi Tadokoro, Shingo Odani, Ayako Morita, Kazumi Natsuhara, Suparat Phuanukoonnon, Gwendalyn Vengiau, Peter M Siba, Minoru Yoneda. Association between sex inequality in animal protein intake and economic development in the Papua New Guinea highlands: The carbon and nitrogen isotopic composition of scalp hair and fingernail. Am. J. Phys. Anthropol.. 2016.01; 159 (1): 164-173. ( PubMed, DOI )

Yuichi I Naito, Ayako Morita, Kazumi Natsuhara, Kiyoshi Tadokoro, Jun Baba, Shingo Odani, Eriko Tomitsuka, Katsura Igai, Takumi Tsutaya, Minoru Yoneda, Andrew R Greenhill, Paul F Horwood, Kevin W Soli, Suparat Phuanukoonnon, Peter M Siba, Masahiro Umezaki. Association of protein intakes and variation of diet-scalp hair nitrogen isotopic discrimination factor in Papua New Guinea highlanders. Am. J. Phys. Anthropol.. 2015.11; 158 (3): 359-370. ( PubMed, DOI )

Andrew R Greenhill, Hirokazu Tsuji, Kiyohito Ogata, Kazumi Natsuhara, Ayako Morita, Kevin Soli, Jo-Ann Larkins, Kiyoshi Tadokoro, Shingo Odani, Jun Baba, Yuichi Naito, Eriko Tomitsuka, Koji Nomoto, Peter M Siba, Paul F Horwood, Masahiro Umezaki. Characterization of the gut microbiota of papua new guineans using reverse transcription quantitative PCR. PLoS ONE. 2015; 10 (2): e0117427. ( PubMed, DOI )

Rami Al Rifai, Keiko Nakamura, Kaoruko Seino, Masashi Kizuki, Ayako Morita. Unsafe sexual behaviour in domestic and foreign migrant male workers in multinational workplaces in Jordan: occupational-based and behavioural assessment survey. BMJ Open. 2015; 5 (6): e007703. ( PubMed, DOI )

Ayako Morita, Kazumi Natsuhara, Eriko Tomitsuka, Shingo Odani, Jun Baba, Kiyoshi Tadokoro, Katsura Igai, Andrew R Greenhill, Paul F Horwood, Kevin W Soli, Suparat Phuanukoonnon, Peter M Siba, Masahiro Umezaki. Development, validation, and use of a semi-quantitative food frequency questionnaire for assessing protein intake in Papua New Guinean Highlanders. Am. J. Hum. Biol.. 2014.11; ( PubMed, DOI )

Kevin W Soli, Tobias Maure, Monalisa P Kas, Grace Bande, Sauli Bebes, Dagwin Luang-Suarkia, Peter M Siba, Ayako Morita, Masahiro Umezaki, Andrew R Greenhill, Paul F Horwood. Detection of enteric viral and bacterial pathogens associated with paediatric diarrhoea in Goroka, Papua New Guinea. Int. J. Infect. Dis.. 2014.10; 27 54-58. ( PubMed, DOI )

Mari Uchimura, Masashi Kizuki, Takehito Takano, Ayako Morita, Kaoruko Seino. Impact of the 2011 Great East Japan Earthquake on community health: ecological time series on transient increase in indirect mortality and recovery of health and long-term-care system. J Epidemiol Community Health. 2014.09; 68 (9): 874-882. ( PubMed, DOI )

Kevin W Soli, Monalisa Kas, Tobias Maure, Masahiro Umezaki, Ayako Morita, Peter M Siba, Andrew R Greenhill, Paul F Horwood. Evaluation of colorimetric detection methods for Shigella, Salmonella, and Vibrio cholerae by loop-mediated isothermal amplification. Diagn. Microbiol. Infect. Dis.. 2013.12; 77 (4): 321-323. ( PubMed, DOI )

Sunsanee Mekrungrongwong, Keiko Nakamura, Masashi Kizuki, Ayako Morita, Tewarit Somkotra, Kaoruko Seino, Takehito Takano. Great inclination to smoke among younger adults coming from low-socioeconomic class in Thailand. Int Arch Med. 2011; 4 (1): 29. ( PubMed, DOI )

Ayako Morita, Takehito Takano, Keiko Nakamura, Masashi Kizuki, Kaoruko Seino. Contribution of interaction with family, friends and neighbours, and sense of neighbourhood attachment to survival in senior citizens: 5-year follow-up study. Soc Sci Med. 2010.02; 70 (4): 543-549. ( PubMed, DOI )