The investigators are committed to complying with the prevailing norms of Good Clinical Practice, as well as with the requirements of the Declaration of Helsinki and the clauses of general and particular ethical conditions related to the right to privacy, anonymity and confidentiality. Neither the first name nor the surnames or any other type of data indicating the identity of the subjects will be registered. Therefore, identification will be made by numerical codes. Since this type of study is developed in the usual clinical setting, authorization and support must be and has already been granted by the representatives and authorities of the groups involved and thus, individual informed consent is not necessary. However, the consent of target population attending a primary care appointment will be registered in the EMR. The protocol has been approved by the Clinical Investigation Ethics Committee of the Jordi Gol i Gurina Foundation (protocol number P10/31).