Вернуться к статье![Participants of online survey-questionnaires depending on the year of studying](/media/images/2023-10-18/e000c035-2e5e-48a7-8a88-37c6c410d55e.png)
Etiological Aspects of the Primary Headache Prevalence: on the example of PSMU (Pacific State Medical University) students
Figure 1 - Participants of online survey-questionnaires depending on the year of studying
![Participants of online survey-questionnaires depending on the year of studying](/media/images/2023-10-18/e000c035-2e5e-48a7-8a88-37c6c410d55e.png)
Figure 1 - Participants of online survey-questionnaires depending on the year of studying