African Journal of
Medical and Health Sciences

OFFICIAL PUBLICATION OF THE FEDERAL TEACHING HOSPITAL, ABAKALIKI, NIGERIA
  • Abbreviation: Afr. J. Med. Health Sci.
  • Language: English
  • ISSN: 2384-5589
  • DOI: 10.5897/AJMHS
  • Start Year: 2017
  • Published Articles: 79

Full Length Research Paper

Serum 25-hydroxyvitamin D status in non-elderly adults (18-64 years) working indoors at 40° north latitude

Koichiro Okuyama
  • Koichiro Okuyama
  • Department of Orthopedic Surgery, Akita Rosai Hospital, Japan.
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Tadato Kido
  • Tadato Kido
  • Department of Orthopedic Surgery, Akita Rosai Hospital, Japan.
  • Google Scholar
Naohisa Miyakoshi
  • Naohisa Miyakoshi
  • Department of Orthopaedic Surgery, Akita University School of Medicine, Japan.
  • Google Scholar
Kimitaka Tajimi
  • Kimitaka Tajimi
  • Department of Orthopaedic Surgery, Akita University School of Medicine, Japan.
  • Google Scholar
Yoichi Shimada
  • Yoichi Shimada
  • Research Centre of Occupational Injury and Illness, Akita Rosai Hospital, Japan.
  • Google Scholar


  •  Received: 07 August 2019
  •  Accepted: 30 January 2020
  •  Published: 29 February 2020

How to cite this article

APA /
Okuyama, K., Kido, T., Miyakoshi, N., Tajimi, K., & Shimada, Y. (2020). Serum 25-hydroxyvitamin D status in non-elderly adults (18-64 years) working indoors at 40° north latitude. African Journal of Medical and Health Sciences, 19(1), 7-14.
Chicago /
Koichiro Okuyama, Tadato Kido, Naohisa Miyakoshi, Kimitaka Tajimi and Yoichi Shimada. "Serum 25-hydroxyvitamin D status in non-elderly adults (18-64 years) working indoors at 40° north latitude." African Journal of Medical and Health Sciences 19, no. 1 (2020): 7-14.
MLA /
Koichiro Okuyama, et al. "Serum 25-hydroxyvitamin D status in non-elderly adults (18-64 years) working indoors at 40° north latitude." African Journal of Medical and Health Sciences 19.1 (2020): 7-14.