Within the framework of expedition research “Complex studies Antarctic marine ecosystem in areas transport and interaction water masses Atlantic sector Antarctica, Scotia Sea Drake Strait” (cruise 87 R/V “Academik Mstislav Keldysh”, 7 December 2021–5 April 2022), distribution gas-geochemical fields methane Bransfield Strait was studied detail for first time. The connection with complex hydrolog...

Prognostic studies derived from samples of patients managed in tertiary hospitals are subject to referral bias. We aimed characterize this bias using the example infective endocarditis. analyzed data a French population–based cohort, which included 497 with Patients were admitted directly hospital (Group T), non-tertiary and referred NTT) or not NT). compared patients’ characteristics, survival...