:description" content="This is an Amsterdam Public Health (APH) Research Manual, written for researchers who are planning Ecological Momentary Assessment (EMA) studies." />
  <meta name="twitter:image" content="images/cover/smallcover.jpg" />

<meta name="author" content="Jeroen Ruwaard">
<meta name="author" content="Lisa Kooistra">
<meta name="author" content="Melissa Thong">


<meta name="date" content="2018-11-26">

  <meta name="viewport" content="width=device-width, initial-scale=1">
  <meta name="appl