function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['African Invertebrates', 16],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 4],
    ['Arthropod Systematics & amp; Phylogeny', 5],
    ['Australian Journal of Entomology', 5],
    ['Biodiversity Data Journal', 10],
    ['Bulletin of the American Museum of Natural History', 4],
    ['F. W. Forstmann', 28],
    ['Fain et Compagnie', 5],
    ['Insecta Mundi', 69],
    ['Laurentius Salvius', 13],
    ['Munis Entomology & Zoology', 34],
    ['Program der Königlichen Realschule zu Meseritz', 5],
    ['Stettiner Entomologische Zeitung', 5],
    ['ZooKeys', 33],
    ['Zootaxa', 666],
    ['Other (21)', 32]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=934)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);