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...ake C, Warman G| title=Prevalence of causes of insomnia in primary care: a cross-sectional study. | journal=Br J Gen Pract | year= 2012 | volume= 62 | issue= 595 | pages= e

...dows, D., and Softley, P. (2005). Borna disease virus and mental health: a cross-sectional study. Quarterly Journal of Medicine, 98. 247-254.</ref> This study examined the

...ulating levels of sex steroid hormones, IGF-1 and IGF-binding protein-3: a cross-sectional study in healthy women. ''Eur J Endocrinol'' 190:161-71</ref> This is thought to

...07p53626}. This can be done with a number of different brains (a so-called cross-sectional study) or with one brain at several points in time (a longitudinal study).

...07p53626}. This can be done with a number of different brains (a so-called cross-sectional study) or with one brain at several points in time (a longitudinal study).

...C| title=Fasting Time and Lipid Levels in a Community-Based Population: A Cross-sectional Study. | journal=Arch Intern Med | year= 2012 | volume= | issue= | pages= 1-4 |

...on of stroke and transient ischaemic attack in the emergency department: a cross-sectional study. | journal=J Neurol Neurosurg Psychiatry | year= 2011 | volume= 82 | issue=

...Since Lawrence's methodologically weak (no adjustment for [[confounder]]s) cross-sectional study first suggested that Open Access improves [[citation impact]] in the domain