Due to a lack of financial resources, we unfortunately have to suspend the import of any new radio frequency and mobile phone-related articles as of now (November 27, 2017). We apologize for this inconvenience and will keep you informed.


Epidemiology. A method for collecting data using a set of questions on clinical data, anamnesis, social status, education, occupational group, etc. The questions may be self-administered or interviewer-administered.