Nuestro grupo organiza más de 3000 Series de conferencias Eventos cada año en EE. UU., Europa y América. Asia con el apoyo de 1.000 sociedades científicas más y publica más de 700 Acceso abierto Revistas que contienen más de 50.000 personalidades eminentes, científicos de renombre como miembros del consejo editorial.
Revistas de acceso abierto que ganan más lectores y citas
700 revistas y 15 000 000 de lectores Cada revista obtiene más de 25 000 lectores
Kathy A. Ireland, Aaron J. Manders, Barbara E. Corkey and Carine M. Lenders
Introduction: To describe recruitment difficulties in a pediatric clinical trial targeting underserved pediatric obese populations. Methods: We planned a 6-month randomized, double-blind, placebo-controlled clinical trial of glutamine vs. placebo, to reduce HOMA_IR and weight gain in obese adolescents. Participation required 5 visits at a research center at 8:00 AM. Cash incentives were provided at visits. After recruitment difficulties, study design was modified and recruitment efforts were intensified over a 14-week period. Subjects were recruited from Boston Medical Center’s (BMC) pediatric outpatient clinics including the pediatric obesity program (NFL) which was staffed by members of the research team. Results: 2002 adolescents were evaluated: 546 met BMI and age criteria. After further exclusions, 179 were eligible for a screening visit but only 4 attended. Additionally, 120 recruitment letters were sent to NFL patients, resulting in 4 attending a screening visit. Seven of the 8 adolescents attending a screening visit were from NFL, and 2 were randomized but subsequently lost to follow-up. Discussion: Recruitment of pediatric patients from low-income and minority populations at BMC to a clinical trial is difficult. Challenges included strict inclusion/exclusion criteria and rigid appointment schedules. Existing patientclinician relationships may increase recruitment. Future trials should use more flexible study designs.