function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annals of the Entomological Society of America', 8],
    ['Entomologist\'s monthly magazine', 41],
    ['Entomologist’s Monthly Magazine', 28],
    ['European Journal of Taxonomy', 173],
    ['Insecta Mundi', 17],
    ['New Zealand journal of zoology', 37],
    ['Proceedings of the Linnean Society of New South Wales', 13],
    ['Revue de Zoologie Africaine', 7],
    ['Revue de Zoologie et de Botanique Africaines', 25],
    ['Revue suisse de zoologie', 7],
    ['Special publication of the Japan Coleopterological Society', 9],
    ['Systematic entomology', 9],
    ['The Coleopterists Bulletin', 8],
    ['Transactions of the American Entomological Society', 13],
    ['Zootaxa', 212],
    ['Other (31)', 66]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=673)',
    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);