Brief, factual summary of the medical article in Slovak: The article contains two main topics - an overview of gastric cancer and the effect of prenatal exposure to acid-suppressing drugs on the risk of neuropsychiatric disorders in children. The first study provides an overview of gastric cancer, including epidemiology, risk factors, diagnosis and treatment. A second study examined the effect of prenatal exposure to acid-suppressing drugs such as antacids and proton pump inhibitors on the increased risk of neuropsychiatric disorders in children. The results suggest a possible link between these drugs and increased risk. The article also includes a discussion of new drug pricing, sibling comparisons in observational studies, and other medical and healthcare topics.