function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Biologica Universitatis Daugavpiliensis', 8],
    ['Acta Entomologica Musei Nationalis Pragae', 10],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 4],
    ['Biodiversity Data Journal', 4],
    ['European Journal of Taxonomy', 6],
    ['Evolutionary Systematics', 6],
    ['Far Eastern Entomologist', 5],
    ['Fauna of New Zealand', 7],
    ['Insecta Mundi', 66],
    ['Journal of Natural History', 17],
    ['Linzer biologische Beiträge', 4],
    ['The Coleopterists Bulletin', 28],
    ['ZooKeys', 29],
    ['Zoological Systematics', 64],
    ['Zootaxa', 215],
    ['Other (34)', 57]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=530)',
    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);