@article{ref1,
title="A nationwide survey of seasonal affective disorder at 53 outpatient university clinics in Japan",
journal="Acta psychiatrica Scandinavica",
year="1993",
author="Sakamoto, K. and Kamo, T. and Nakadaira, S. and Tamura, A. and Takahashi, K.",
volume="87",
number="4",
pages="258-265",
abstract="A nationwide survey of seasonal affective disorder (SAD) was performed from autumn 1990 to spring 1991 with the cooperation of 53 outpatient university psychiatric clinics in Japan. Forty-six SAD patients were identified among 5265 depressed outpatients. SAD was generally reported to occur in 1-3% of the depressed outpatients newly attending each facility. Hours of sunshine were found to be a more relevant variable influencing the prevalence of SAD than latitude or the mean temperature in December. The unexpectedly low percentage (20-30%) of SAD patients with atypical vegetative symptoms suggests that SAD patients who have no prior knowledge of SAD and those who are recruited via the media have different vegetative symptom profiles.<p /><p>Language: en</p>",
language="en",
issn="0001-690X",
doi="",
url="http://dx.doi.org/"
}