function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 2],
    ['American Museum Novitates', 2],
    ['Biodiversity Data Journal', 8],
    ['Christ. Gottl. Proft', 2],
    ['Entomologische Zeitung', 2],
    ['Far Eastern Entomologist', 4],
    ['Insect Systematics and Diversity', 24],
    ['Journal of Hymenoptera Research', 3],
    ['Laurentius Salvius', 18],
    ['Linzer biologische Beiträge', 34],
    ['Officina Libraria Kortii', 5],
    ['Raffles Bulletin of Zoology', 4],
    ['Records of the Zoological Survey of India', 3],
    ['Zoological Studies', 3],
    ['Zootaxa', 75],
    ['Other (5)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=195)',
    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);