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Observational studies

Prevalence of oropharyngeal group B Streptococcus colonization in mothers, family, and health care providers

Kristina Roloff, Gohar Stepanyan, Guillermo Valenzuela

Asian-white disparities in obstetric anal sphincter injury: Protocol for a systematic review and meta-analysis

Meejin Park, Susitha Wanigaratne, [ ... ], Giulia M. Muraca

Consent is a confounding factor in a prospective observational study of critically ill elderly patients

Hans Flaatten, Bertrand Guidet, [ ... ], Dylan W. de Lange

Lower doses of carvedilol in Japanese heart failure patients with reduced ejection fraction could show the potential to be non-inferior to higher doses in US patients: An international collaborative observational study

Makiko Maeda, Douglas Humber, [ ... ], Shirley M. Tsunoda

Let’s Agree to Disagree on Operative versus Nonoperative (LADON) treatment for proximal humerus fractures: Study protocol for an international multicenter prospective cohort study

Ruben J. Hoepelman, Yassine Ochen, [ ... ], Mark van Heijl

Toothbrushing behavior over time: A correlational analysis of repeatedly assessed brushing performance

Ulrike Weik, Thorben Sämann, [ ... ], Renate Deinzer

Current practice of hospital-based palliative care teams: Advance care planning in advanced stages of disease: A retrospective observational study

Iris van Doorne, Dick L. Willems, [ ... ], Marjon van Rijn

Causal effect of atrial fibrillation/flutter on chronic kidney disease: A bidirectional two-sample Mendelian randomization study

Masahiro Yoshikawa, Kensuke Asaba, Tomohiro Nakayama

The epidemiology of childhood intussusception in South Korea: An observational study

Soyun Hwang, Joonghee Kim, [ ... ], Young Ho Kwak

Mendelian randomization study shows a causal effect of asthma on chronic obstructive pulmonary disease risk

Yuanyuan Li, Weina Wang, [ ... ], Bo Zhang

Prognostic value of changes in the cardiac arrest rhythms from the prehospital stage to the emergency department in out-of-hospital cardiac arrest patients without prehospital returns of spontaneous circulation: A nationwide observational study

Jae Guk Kim, Hyungoo Shin, [ ... ], Yoonje Lee

Breaking the silence of sharing data in medical research

Henian Chen, Yayi Zhao, [ ... ], Weiliang Cen

Final analysis of the international observational S-Collate study of peginterferon alfa-2a in patients with chronic hepatitis B

Patrick Marcellin, Qing Xie, [ ... ], Heiner Wedemeyer

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