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1.  Should major depressive disorder with mixed features be classified as a bipolar disorder? 
Shanghai Archives of Psychiatry  2014;26(5):294-296.
The new diagnostic category in the Depressive Disorders chapter of DSM-5 entitled ‘Major Depressive Disorder With Mixed Features’ is applied to individuals who meet criteria for Major Depressive Disorder and have concurrent subsyndromal hypomanic or manic symptoms. But the operational definition of this new specifier is much closer to that of hypomania and mania than to the definition of atypical depression or the older ‘mixed depression.’ Moreover, multiple studies have shown that the characteristics of individuals with this condition and the clinical trajectory of their illness is much closer to that of bipolar patients than to that of depressed individuals without comorbid hypomanic or manic symptoms. Thus we believe that this condition would be more appropriately placed in the Bipolar Disorders chapter of DSM-5. We also believe that this blurring of the depressive disorder- bipolar disorder boundary is one cause for the low inter-rater reliability in the diagnosis of Major Depressive Disorder.
PMCID: PMC4248262  PMID: 25477723
major depressive disorder; depression with mixed features; mixed depression; bipolar disorder; DSM-5
2.  Challenges in the diagnosis and treatment of transsexualism in contemporary China 
PMCID: PMC4118002  PMID: 25114481
4.  How to draw the line in biomedical research 
eLife  2013;2:e00638.
The use of the least squares method to calculate the best-fitting line through a two-dimensional scatter plot typically requires the user to assume that one of the variables depends on the other. However, in many cases the relationship between the two variables is more complex, and it is not valid to say that one variable is independent and the other is dependent. When analysing such data researchers should consider plotting the three regression lines that can be calculated for any two-dimensional scatter plot.
PMCID: PMC3601633  PMID: 23538852
Tutorial; statistics; publishing
5.  Combining Domestic and Foreign Investment to Expand Tuberculosis Control in China 
PLoS Medicine  2010;7(11):e1000371.
Jia and colleagues describe how a combination of increased domestic funding, supplemented by foreign loans and donations since 2002, have led to a dramatic increase in tuberculosis case finding in China.
PMCID: PMC2990708  PMID: 21124891

Results 1-6 (6)