function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Australian zoologist', 15],
    ['Bulletin de la Société Philomathique de Paris, Série 7', 21],
    ['Bulletin of the American Museum of Natural History', 63],
    ['Copeia', 21],
    ['Cybium', 31],
    ['European Journal of Taxonomy', 214],
    ['Geodiversitas', 18],
    ['Journal of Natural History', 21],
    ['Laurentius Salvius', 26],
    ['Proceedings of the United States National Museum, 3', 20],
    ['Records of the Australian Museum', 16],
    ['Veit', 23],
    ['Zoological Journal of the Linnean Society', 69],
    ['Zoosystematics and Evolution', 16],
    ['Zootaxa', 1678],
    ['Other (232)', 553]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=2805)',
    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);