[Characteristics of Spatiotemporal Changes in China's Carbon Budget at Different Administrative Scales].

Currently, scientifically and reasonably specifying carbon emission reduction measures in the context of "double carbon" has become a common concern worldwide. China's administrative divisions have a notable impact on the formulation and implementation of relevant policies. Therefore the carbon emissions must be calculated accurately under China's administrative divisions at different scales.

Nasopharyngeal carcinoma with synchronous breast metastasis: A case report.

Background: Recent reports have described cases of metachronous breast metastasis in patients with nasopharyngeal carcinoma. However, no similar cases of synchronous breast metastasis have been reported, and evidence that can be used to support the clinical diagnosis of stage IV nasopharyngeal carcinoma in patients with concurrent breast metastasis remains lacking. Therefore, additional evidence is required to elucidate the clinical characteristics of this condition and aid in the development of optimal management strategies.

Clinical and pathological features and risk factors for primary breast cancer patients.

Background: Breast cancer is the most common malignancy in women all around the world. According to the latest statistics in 2018, there were more than 2.08 million new breast cancer cases all around the world and more than 620000 deaths; the proportion of breast cancer deaths in women with cancer is 15%.