function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adansonia', 133],
    ['Biodiversity Data Journal', 264],
    ['Birkhaeuser Verlag', 356],
    ['Boissiera', 89],
    ['Candollea', 156],
    ['Denkschriften der Schweizerischen Naturforschenden Gesellschaft', 180],
    ['Edinburgh Journal of Botany', 76],
    ['Flora Helvetica', 309],
    ['Info Flora Schweiz', 403],
    ['Laurentius Salvius', 169],
    ['Linzer biologische Beiträge', 73],
    ['Order out of Chaos. Linnaean Plant Types and their Types', 842],
    ['PhytoKeys', 804],
    ['Phytotaxa', 1218],
    ['Zootaxa', 140],
    ['Other (70)', 573]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=5785)',
    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);