function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Conchyliorum', 16],
    ['Archiv für Molluskenkunde', 5],
    ['Biodiversity Data Journal', 2],
    ['Geodiversitas', 4],
    ['Journal of Natural History', 1],
    ['Laurentius Salvius', 43],
    ['Memoirs of Museum Victoria', 12],
    ['PaleoBios', 19],
    ['Visaya', 21],
    ['ZooKeys', 5],
    ['Zoological Journal of the Linnean Society', 1],
    ['Zoosystema', 2],
    ['Zootaxa', 7],
    ['de l\'Autuer', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=139)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);