function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Biologica Universitatis Daugavpiliensis', 1],
    ['Acta Entomologica Musei Nationalis Pragae', 2],
    ['Baltic Journal of Coleopterology', 4],
    ['Berliner Entomologische Zeitschrift', 18],
    ['Caucasian Entomological Bulletin', 4],
    ['Entomo Helvetica', 1],
    ['Far Eastern Entomologist', 3],
    ['Io. Frid. Gleditsch', 2],
    ['Ioannis Thomae Trattner', 2],
    ['Laurentii Salvii', 3],
    ['Laurentius Salvius', 31],
    ['Linzer biologische Beiträge', 7],
    ['Proft et Storch', 4],
    ['Russian Entomological Journal', 6],
    ['Zootaxa', 35],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=124)',
    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);