Adherence to (compliance with) drug treatment is important. However, only about half the people who leave a doctor's office with a prescription take the drug as directed. Among the many reasons people give for not adhering to drug treatment, forgetfulness is the most common.
Definition of periodical. 1  1 : periodic 1. 2  2a : published with a fixed interval between the issues or numbersb : published in, characteristic of, or connected with a periodical.
Knowing something about the characteristics of each type--popular, scholarly, or trade--will help in identifying the appropriate type of periodical titles. POPULAR PERIODICALS Tend to have short articles (1-5 pages) Cover a variety of topic/subject areas (Time, The New Yorker, National Review).