Does the resistive index of the radial artery change after arterial cannulation in patients undergoing abdominal surgery? A prospective observational study by Lakshmi Kumar, Rajasri Subramaniam, P Anandajith Kartha, Dimple E. Thomas, Sunil Patel, Niveditha Kartha

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Comparing growth velocity of HIV exposed and non-exposed infants: An observational study of infants enrolled in a randomized control trial in Zambia. by Obvious Nchimunya Chilyabanyama, Roma Chilengi, Natasha Makabilo Laban, Masuzyo Chirwa, Michelo Simunyandi, Luiza Miyanda Hatyoka, Innocent Ngaruye, Najeeha Talat Iqbal, Samuel Bosomprah

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Dementia and patient outcomes after hip surgery in older patients: A retrospective observational study using nationwide administrative data in Japan. by Noriko Morioka, Mutsuko Moriwaki, Jun Tomio, Kiyohide Fushimi, Yasuko Ogata

“…<h4>Design and setting</h4>Retrospective observational study using the linked data between the Japanese Diagnosis Procedure Combination database and the reports of the medical functions of hospital beds database in Japan (April 2016-March 2017).…”
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Response to: Comment on “Noninvasive Ventilation Weaning in Acute Hypercapnic Respiratory Failure due to COPD Exacerbation: A Real-Life Observational Study” by Paola Faverio, Anna Stainer, Federica De Giacomi, Grazia Messinesi, Valentina Paolini, Anna Monzani, Paolo Sioli, Irdi Memaj, Oriol Sibila, Paolo Mazzola, Alberto Pesci

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Cyanoacrylate Injection Compared with Band Ligation for Acute Gastric Variceal Hemorrhage: A Meta-Analysis of Randomized Controlled Trials and Observational Studies by Xiaohua Ye, Jiaping Huai, Yanping Chen

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Predictive value of the New Zealand Early Warning Score for early mortality in low-acuity patients discharged at scene by paramedics: an observational study by Bridget Dicker, Verity Frances Todd, Tony Smith, Andy Swain, Graham Howie, Melanie Moylan, Aroha Brett

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Cost-effectiveness analysis of extended endoscopic lumbar foraminotomy (EELF) and transforaminal lumbar interbody fusion (TLIF): a prospective observational study by Jun-Hoe Kim, Hangeul Park, Chang-Hyun Lee, Chi Heon Kim

“…While conventional foraminal decompression poses a risk of segmental instability, the endoscopic approach (extended endoscopic lumbar foraminotomy, EELF) resects only the ventral part of the facet joint with a horizontal surgical trajectory. A prospective observational study was performed to analyze the cost-effectiveness of EELF versus TLIF. …”
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Factors associated with prolonged length of stay following cardiac surgery in a major referral hospital in Oman: a retrospective observational study by Paul Aylin, Ahmed Almashrafi, Hilal Alsabti, Mirdavron Mukaddirov, Baskaran Balan

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Characteristics and outcomes of women using emergency medical services for third-trimester pregnancy-related problems in India: a prospective observational study by Jennifer A Newberry, Corey B Bills, Elizabeth A Pirrotta, Matthew C Strehlow, G V Ramana Rao, Hyeyoun (Elise) Min, Ann E Evensen, Lawrence Leeman, S V Mahadevan

“…Objectives Characterise the demographics, management and outcomes of obstetric patients transported by emergency medical services (EMS).Design Prospective observational study.Setting Five Indian states using a centralised EMS agency that transported 3.1 million pregnant women in 2014.Participants This study enrolled a convenience sample of 1684 women in third trimester of pregnancy calling with a ‘pregnancy-related’ problem for free-of-charge ambulance transport. …”
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Evaluation of the “Multivariable Psoriatic Arthritis Risk Estimation Tool” in a Cohort of Patients with Psoriasis: Preliminary Results of a Prospective Observational Study by Ennio Lubrano, Filomena Mandato, Marcella Antenucci, Fabio Massimo Perrotta

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Reduced Occurrence of Gastrointestinal Symptoms in Chinese Infants Fed Minimally Processed Commercially Available Formula: A Cross-Sectional Observational Study by Xiao Yang Sheng, Vanitha Buthmanaban, Glenn A. A. van Lieshout, Panam Parikh

“…A cross-sectional, observational study of one week was conducted in healthy, term, exclusively formula-fed Chinese infants (n = 452) fed with one of four commercially available IF (IF A n = 106, BL 9%; IF B n = 119, BL 12%; IF C n = 113, BL 11%; IF D n = 114 BL 20%). …”
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Regional cerebral oxygen saturation during initial mobilization of critically ill patients is associated with clinical outcomes: a prospective observational study by Ryota Imai, Takafumi Abe, Kentaro Iwata, Seigo Yamaguchi, Takeshi Kitai, Atsuhiro Tsubaki

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Contribution of type 2 diabetes to major adverse cardiovascular events (MACE) in a long-term observational study with different stages of atherosclerosis by Arthur Mader, Dario Haeberli, Barbara Larcher, Jörn F. Dopheide, Christoph H. Saely, Christine F. Heinzle, Peter Amann, Marc Schindewolf, Andreas Festa, Heinz Drexel

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App-Based Ecological Momentary Assessment of Problematic Smartphone Use During Examination Weeks in University Students: 6-Week Observational Study by Ji Seon Ahn, InJi Jeong, Sehwan Park, Jooho Lee, Minjeong Jeon, Sangil Lee, Gangho Do, Dooyoung Jung, Jin Young Park

“…MethodsA 6-week observational study involving 243 university students was conducted using app-based EMA on personal smartphones to collect data on daily behaviors and psychosocial factors related to smartphone overuse. …”
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Chronic inflammatory bowel diseases: the course and treatment methods in Russian Federation (Results of multicenter population-based one-stage observational study) by L. . Khalif, M. V. Shapina, A. O. Golovenko, Ye. A. Belousova, Ye. Yu. Chashkova, A. V. Lakhin, O. V. Knyazev, A. Yu. Baranovsky, N. N. Nikolayeva, A. V. Tkachev

“…The present investigation was designed as population-based one-stage observational study. The clinical data, treatment methods, laboratory tests results and the rate of adverse effects for patients with inflammatory bowel diseases (IBD) from 8 gastroenterological centers were obtained. …”
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Improving neonatal outcome by studying the incidence of maternal group B streptococcus colonization among pregnant women: A prospective observational study by Priyank Rajan, Mukesh Sanklecha, Saloni Gandhi, Kaushal Soni, Mayur Wanjari, Gaurav Mittal

“…Material and Methods: A prospective observational study was conducted among 50 obstetric patients at 35–37 weeks of gestation attending the outpatient and inpatient departments of a tertiary care hospital. …”
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Relationship between Self-Efficacy and Headache Impact, Anxiety, and Physical Activity Levels in Patients with Chronic Tension-Type Headache: An Observational Study by Ángel González de la Flor, Guillermo García Pérez de Sevilla, Diego Domíngez Balmaseda, Daniel Martín Vera, María Montero Martínez, Jose Ángel Del Blanco Muñiz

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Real-world safety of linaclotide in Chinese patients with irritable bowel syndrome with constipation: a multicenter, single-arm, prospective observational study by Yinglian Xiao, Xianmei Meng, Qingfeng Luo, Xiaohua Hou, Jie Jin, Xianfei Zhong, Wei Gong, Xiuling Li, Minhu Chen

“…Design: Multicenter, prospective observational study. Methods: Adults with IBS-C who had taken or planned to take at least one dose of linaclotide 290 μg were enrolled and followed up for 3 months. …”
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Implementation of a nurse-driven protocol for indwelling urinary catheter removal and novel utilization dashboard: a pre/postintervention observational study by Michelle Kamel, Nichole Harris, Andrew Berry, Theodore Warsavage, Mary T. Bessesen, Shelley E. Kon

“…Design: Pre/postintervention, observational study at a 160-bed, level 1a academically affiliated Veterans Affairs (VA) hospital. …”
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Consecutive prediction of adverse maternal outcomes of preeclampsia, using the PIERS-ML and fullPIERS models: A multicountry prospective observational study. by Guiyou Yang, Tünde Montgomery-Csobán, Wessel Ganzevoort, Sanne J Gordijn, Kimberley Kavanagh, Paul Murray, Laura A Magee, Henk Groen, Peter von Dadelszen

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