Integrated health care delivery: Integrated care has been defined by the World Health Organization (WHO) as: "The management and delivery of health services such as that people receive a continuum of health promotion, disease prevention, diagnosis, treatment, disease management, rehabilitation and palliative care services, through the different levels and sites of care within the health system, and according to their bio-psycho and social needs throughout the life course" (WHO, 2012). Integrated care research priorities: * (cost) effectiveness of integrated care programmes for patients with (multiple) chronic care conditions * What is the (cost) effectiveness of integrated care programmes for patients with multi-morbidity on clinical and patient reported outcomes of care? * (cost) effectiveness of multifaceted intervention strategies (programmes) for the detection, diagnosis and management of chronic diseases and multi-morbidity, targeting clinical inertia in physicians. * How (cost) effective are family physicians in the detection, diagnosis and management of patients with multimorbidity? * What is the (cost) effectiveness of multidisciplinary teams that target clinical inertia in family physicians? * (cost) effectiveness of 'transmural care' (from hospital to home care, and vice versa) for patients with multi-morbidity. * What is the (cost) effectiveness of a transmural care programme for patients with multi-morbidity on clinical and patient reported health outcomes? * What are the factors that hinder/facilitate the implementation of integrated care for patient with multimorbidity at the structure, process and outcome level of care? * What bio-psycho-social empowerment strategies can be applied to patients with multi-morbidity and their families to improve adherence with the therapeutic regimen? * Development of a conceptual framework on quality indicators for integrated healthcare delivery at the structure, process and outcome level of care for patients with multi-morbidity. * What are quality indicators for integrated health for patients with multimorbidity at the structure, process and outcome level of care? * Development of a conceptual framework on multi-morbidity including a complexity analysis at the level of the patient, caregiver and health system. * What determines case, care, quality assessment and health systems complexity for patients with multi-morbidity? Other research topics: * Health services accessibility for socio-economically disadvantaged groups * Sexual behaviour and dysfunctions in gay men