function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 23],
    ['Alpine Entomology', 4],
    ['Biodiversity Data Journal', 276],
    ['European Journal of Taxonomy', 72],
    ['Far Eastern Entomologist', 17],
    ['Fauna of New Zealand', 17],
    ['Formosan Entomologist', 4],
    ['Insects of Guam II', 4],
    ['Iowa State College Journal of Science', 5],
    ['Journal of Hymenoptera Research', 36],
    ['Journal of Natural History', 15],
    ['Journal of Threatened Taxa', 7],
    ['ZooKeys', 45],
    ['Zoological Systematics', 4],
    ['Zootaxa', 1159],
    ['Other (20)', 30]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1718)',
    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);