function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 74],
    ['Annales de la Société Entomologique de France, Nouvelle Série', 2],
    ['European Journal of Taxonomy', 5],
    ['Insecta Mundi', 1],
    ['Insects of Guam I', 1],
    ['J. Zool. Syst. Evol. Research', 1],
    ['Japanese Journal of Systematic Entomology', 1],
    ['Journal of Natural History', 2],
    ['New Zealand entomologist', 1],
    ['New Zealand journal of zoology', 1],
    ['Tijdschrift voor Entomologie', 2],
    ['ZooKeys', 139],
    ['Zoological Journal of the Linnean Society', 2],
    ['Zoological Systematics', 6],
    ['Zootaxa', 46],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=287)',
    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);