function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Biologica Universitatis Daugavpiliensis', 21],
    ['Acta Entomologica Musei Nationalis Pragae', 13],
    ['Arquivos entomolóxicos', 16],
    ['Far Eastern Entomologist', 29],
    ['Genus', 19],
    ['Insect Systematics and Diversity', 9],
    ['Insecta Mundi', 41],
    ['Linzer biologische Beiträge', 8],
    ['Polskie Pismo Entomologiczne [Polish Journal of Entomology]', 10],
    ['Studies and Reports, Taxonomical Series', 6],
    ['Studies and reports of District Museum Prague-East, Taxonomical Series', 7],
    ['The Coleopterists Bulletin', 38],
    ['ZooKeys', 68],
    ['Zoological Studies', 6],
    ['Zootaxa', 90],
    ['Other (39)', 67]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=448)',
    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);