function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Archiv für Molluskenkunde', 6],
    ['Australian Entomologist', 2],
    ['Biodiversity Data Journal', 2],
    ['Bulletin des Sciences par la Société Philomathique de Paris', 2],
    ['Far Eastern Entomologist', 4],
    ['Insects of Guam I', 10],
    ['Int J Ent', 17],
    ['Memoirs of Museum Victoria', 5],
    ['Papéis Avulsos de Zoologia', 27],
    ['Proceedings of the Linnean Society of New South Wales', 2],
    ['Revue suisse de Zoologie', 3],
    ['Russian Entomological Journal', 8],
    ['ZooKeys', 7],
    ['Zoological Journal of the Linnean Society', 59],
    ['Zootaxa', 135],
    ['Other (10)', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=300)',
    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);