function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 8],
    ['Annales de la Société Entomologique de France, Séries 1 - 6', 2],
    ['Bibliopolii Academici Novi', 1],
    ['Biodiversity Data Journal', 10],
    ['Bulletin du Muséum National d’Histoire Naturelle, Série 2', 2],
    ['C. G. Proft, Fil. et Soc.', 1],
    ['Christ. Gottl. Proft', 3],
    ['Entomo Helvetica', 2],
    ['European Journal of Taxonomy', 24],
    ['Insecta Mundi', 25],
    ['Insects of Guam I', 3],
    ['Linzer biologische Beiträge', 2],
    ['Nature Conservation', 2],
    ['ZooKeys', 22],
    ['Zootaxa', 198],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=317)',
    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);