Recruitment to a school-based adult smoking-cessation program: do gender and race/ethnicity make a difference?
Intragroup variations need to be carefully considered in the design and implementation of such programs if they are to receive acceptance and to succeed.
Anemia and iron deficiency were associated with low levels of serum retinol in children aged 1 to 5 years, and a positive correlation was verified between serum retinol and serum ferritin and hemoglobin levels. These results indicate the importance of initiatives encouraging the development of new treatments and further research regarding retinol deficiency.