function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Comparative Cytogenetics', 7],
    ['Entomologist\'s monthly magazine', 3],
    ['European Journal of Taxonomy', 3],
    ['Fauna of New Zealand', 25],
    ['Insecta Mundi', 94],
    ['Insects of Guam II', 31],
    ['Journal of Insect Science', 4],
    ['Journal of Natural History', 7],
    ['Laurentius Salvius', 18],
    ['Philippine journal of science', 6],
    ['Proceedings of the Hawaiian Entomological Society', 4],
    ['Trans Proc N Z Inst', 3],
    ['ZooKeys', 60],
    ['Zoosystema', 17],
    ['Zootaxa', 744],
    ['Other (26)', 39]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1065)',
    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);