function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bulletin de la Société Zoologique de France', 4],
    ['Coleopterists bulletin', 1],
    ['Deutsche Entomologische Zeitschrift', 75],
    ['Insect Systematics & Evolution', 1],
    ['Insecta Mundi', 2],
    ['Journal of the New York Entomological Society', 29],
    ['New Zealand entomologist', 4],
    ['Nouvelle Revue d\'Entomologie', 20],
    ['Nouvelle Revue d\'Entomologie, Nouvelle Serie', 38],
    ['Occasional Papers of the Bernice P. Bishop Museum', 13],
    ['Records of the Australian Museum', 5],
    ['Spixiana', 1],
    ['Systematic entomology', 13],
    ['The Coleopterists Bulletin', 30],
    ['ZooKeys', 235],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=472)',
    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);