Despite a decline in incidence and mortality during the last decades, stomach cancer is one
of the main health challenges worldwide. According to the GLOBOCAN 2020 estimates …

The commercially sold cigarettes contain more than 7000 chemicals, and their combustion
produces potential toxicants in mainstream smoke (MS), sidestream smoke (SS) …

Importance Gastric cancer is one of the most common cancers, with a high mortality-to-
incidence ratio. It is uncertain whether developed nations may encounter an increasing …

Background The causal association between cigarette smoking and several diseases
remains equivocal. The purpose of this study was to appraise the causal role of smoking in a …

Pancreatic cancer is the seventh leading cause of cancer-related deaths worldwide.
However, its toll is higher in more developed countries. Reasons for vast differences in …

Objectives Global descriptions of international patterns and trends in oral cancer are
informative in providing insight into the shifting epidemiologic patterns and the potential …

As the most populous country in the world, China has made strides in health promotion in
the past few decades. With the aging population, the burden of cancer in China continues to …

Importance Use of electronic cigarettes (e-cigarettes) is increasing. Measures of exposure to
known tobacco-related toxicants among e-cigarette users will inform potential health risks to …

The human microbiome harbors a diverse array of microbes which establishes a mutually
beneficial relation with the host in healthy conditions, however, the dynamic homeostasis is …

Hepatocellular carcinoma (HCC) is the sixth most common cancer and the second leading
cause of cancer mortality worldwide. Incidence rates of liver cancer vary widely between …