function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Zoologica Sinica', 5],
    ['African Invertebrates', 3],
    ['Agricultural Research Council, Government of Pakistan', 2],
    ['Akademiya Nauk SSSR', 2],
    ['Biodiversity Data Journal', 2],
    ['Centralblatt für Bakteriologie, Parasitenkunde und Infektionskrankheiten', 4],
    ['Göteborgs K. Vetensk. - o. Vitter. Samh. Handl.', 4],
    ['Indian Journal of Helminthology', 5],
    ['Japanese Journal of Zoology', 3],
    ['Journal of Parasitology', 5],
    ['Osnovy Trematodologii', 3],
    ['Proceedings of the Helminthological Society of Washington', 3],
    ['The American Midland Naturalist', 4],
    ['Zoological Research', 3],
    ['Zootaxa', 6],
    ['Other (43)', 51]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=105)',
    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);