====== Visit 2 of General Assessment 2A ======

Lifelines participants participating in general assessment [[2A]] visited a [[location]] of their choice for a second time.\\
At the location, they underwent the following procedures:
  * Collection of scalp [[hair]]
  * Fasting venapuncture to collect [[blood samples]] for [[blood analyses]] and [[blood samples storage|storage]] (8+ years old). 
  * Handing in of 24-h [[urine samples]] for [[urine analyses]] and [[urine samples storage]] (18+ years old)
  * Handing in of timed overnight [[ urine samples]] for [[urine analyses]] and [[urine samples storage]] (8-17 years old).

2A Visit 2 was preceded by [[2A Visit 1]] within, on average 40 days.\\
2A Visit 2 was accompanied by [[2A Questionnaire 2]] which was filled in, on average, 17 days (SD: ± 36 days) prior to 2A visit 2.\\
2A Visit 2 was the final part of general assessment [[2A]].

2A Visit 2 is procedurally equivalent to [[1A Visit 2]] and [[3A Visit 2]]. The average time between [[1A Visit 2]] and 2A Visit 2 was 4 years.