Editorial

1. Primary care and cancer

Original Research

1. The association of inherited variation in the CLOCK gene with breast cancer tumor grade
2. Use of prostate-specific antigen testing in Medicare beneficiaries:Association with previous evaluation
3. Symptoms predicting health-related quality of life in prostate cancer patients treated with localized radiation therapy
4. Complex multimorbidity and health outcomes in older adult cancer survivorsa
5. The relationship between anxiety about prostate cancer among patients with biochemical cancer recurrence and the use of complementary and alternative medicines, diet, and exercise
6. Short sleep duration as a contributor to racial disparities in breast cancer tumor grade

China Focus

1. Distribution and equity trends for general practitioners in China from 2012 to 2015