Results 161 to 170 of about 22,736,035 (402)
Background When delivered through vaccination Vi-polysaccharide antigen of Salmonella enterica serotype Typhi protects against typhoid by inducing IgG anti-Vi antibodies.
Farhana Khanam+28 more
doaj +1 more source
Clinical trials are the most rigorous scientific and regulated method to investigate the safety and efficacy of vaccines or drugs in pre-licensure stage.
Rejwana Haque Pial+18 more
doaj +1 more source
Multicenter evaluation of five commercial rubella virus immunoglobulin G kits which report in international units per milliliter [PDF]
Wayne Dimech+7 more
openalex +1 more source
As many patients with inflammatory arthritis (IA) have chronic pain, understanding how to best assess and manage pain in IA is a priority. Comorbid depression is prevalent in adults with IA, affecting 15% to 39% of people. Although pain and depression are thought to be associated in IA, this concept is largely based on cross‐sectional data.
Natasha Cox+3 more
wiley +1 more source
Teacher-centered analysis with TIMSS and PIRLS data: weighting approaches, accuracy, and precision
This paper extends existing work on teacher weighting in student-centered surveys by looking into aspects of practical implementation of deriving and using weights for teacher-centered analysis in the Trends in International Mathematics and Science Study
Shelby J. Haberman+2 more
doaj +1 more source
Evaluation of the reproducibility of the revised 1988 international federation of gynecology and obstetrics grading system of endometrial cancers with special emphasis on nuclear grading [PDF]
Anette Lynge Nielsen+2 more
openalex +1 more source
Objective This study analyzed longitudinal trajectories of soluble Flt1 (sFlt1) levels, placenta growth factor (PlGF) levels, and sFlt1:PlGF ratios in a cohort of pregnant patients with systemic lupus erythematosus (SLE). Methods Blood samples were collected (14–18, 24–26, 30–32, 34–36, and 38–40 weeks), stored at −80°C, and evaluated for serum levels ...
Nilson R. de Jesús+7 more
wiley +1 more source