function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['BIOGEOGRAPHIA-Lav. Soc. ital. Biogeoqr. N. S.', 18],
    ['Biodiversity Data Journal', 18],
    ['Check List', 2],
    ['European Journal of Taxonomy', 2],
    ['Far Eastern Entomologist', 7],
    ['Insecta Mundi', 3],
    ['International Journal of Myriapodology', 20],
    ['Journal of Natural History', 6],
    ['Revue suisse de Zoologie', 2],
    ['Species Diversity', 4],
    ['VERLAG VON LEOPOLD VOSS, BUCHHAENDLER D. K. ACADEHIE D. WISSENSCHAFTEN ZU ST. PETERSBURG', 2],
    ['ZooKeys', 29],
    ['Zoological Systematics', 2],
    ['Zoosystema', 17],
    ['Zootaxa', 114],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=249)',
    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);