The association between vitamin C and breast cancer, prostate cancer and colorectal cancer: A systematic review and meta-analysis.

Background: For a comprehensive evaluation and due to the inconsistent results of previous studies, we performed this meta-analysis with the aim of vitamin C effect on breast cancer and prostate cancer and colorectal cancer.

Methods: PubMed, Scopus and Web of Science were searched to identify studies on the association between vitamin C and breast cancer, prostate cancer and colorectal cancer through September 11, 2023. The pooled RR and the 95% confidence intervals were used to measure the association between vitamin C and breast cancer, prostate cancer and colorectal cancer by assuming a random effects meta-analytic model.

The effect of guided group reflection on the ability and convenience of breaking bad news in pre-hospital emergency staff.

Background: Bad news refers to any information that create negative changes in a person's understanding or expectations of in present and future. Breaking Bad News (BBN) is a stressful task that may have disturbing effects on the professional performance and general health of the medical staff. Pre-hospital emergency staff often needs to deliver bad news to the patient or his family.

Barriers to Mental and Social Health Programs in Schools: A Qualitative Study.

In order to achieve development goals, in addition to providing students with physical health, their mental and social health should be considered as a necessity and priority in development programs. This program, called the Nemad Project in Iran was formally established in 2015. This study aims to explore the challenges of the Nemad project in Iranian schools based on stakeholders' views.