Data collection: All data collection and assessments will be performed at "Sundhedshuset" by trained staff under the instruction and supervision of the primary investigator. Date of all assessments will be noted. Blood samples (approximately 20 ml) will be taken in "Sundhedshuset" by trained staff under the supervision of the primary investigator. Date and time of blood sampling will be documented. Blood samples will be transported to Hvidovre Hospital after collection, and plasma and serum will be stored in a biobank at -80°C until analysis.