function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acarologia', 102],
    ['African Invertebrates', 9],
    ['Annales zoologici', 19],
    ['Bull. British Mus. nat. Hist., Zool. ser.', 78],
    ['Bulletin of the British Museum of Natural History (Zoology series)', 12],
    ['Genus', 28],
    ['Hornmilben (Oribatida) [Dahl, Tierwelt Deutschlands, Teil 76]', 31],
    ['Journal of Natural History', 22],
    ['Linzer biologische Beiträge', 4],
    ['Persian Journal of Acarology', 13],
    ['Proceedings of the Hawaiian Entomological Society', 4],
    ['Systematic & Applied Acarology', 5],
    ['Zoologische Verhandelingen', 33],
    ['Zootaxa', 479],
    ['carolinea', 7],
    ['Other (14)', 19]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=865)',
    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);