function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anais da Academia Brasileira de Ciencias', 1],
    ['Arthus Bertrand', 1],
    ['Berliner entomologische Zeitschrift / herausgegeben von dem Entomologischen Verein in Berlin', 2],
    ['Christ. Gottl. Proft', 1],
    ['Far Eastern Entomologist', 8],
    ['Gottl. Friedr. Schniebes', 3],
    ['Halteres', 2],
    ['Insects of Guam II', 3],
    ['Japanese Journal of Systematic Entomology', 2],
    ['Laurentius Salvius', 66],
    ['Raffles Bulletin of Zoology', 3],
    ['Umwelt-Vollzug', 12],
    ['Zoological Journal of the Linnean Society', 2],
    ['Zoosystema', 79],
    ['Zootaxa', 822],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1014)',
    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);