function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amphibian & Reptile Conservation', 161],
    ['Bulletin of the American Museum of Natural History', 136],
    ['Check List', 184],
    ['European Journal of Taxonomy', 70],
    ['Journal of Natural History', 67],
    ['Megataxa', 47],
    ['Papéis Avulsos de Zoologia', 41],
    ['Proceedings of the California Academy of Sciences', 72],
    ['Raffles Bulletin of Zoology', 44],
    ['Vertebrate Zoology', 76],
    ['ZooKeys', 316],
    ['Zoological Journal of the Linnean Society', 166],
    ['Zoosystema', 99],
    ['Zoosystematics and Evolution', 228],
    ['Zootaxa', 2007],
    ['Other (80)', 527]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=4241)',
    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);