function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 2],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 1],
    ['Belgian Journal of Entomology', 1],
    ['Biodiversity Data Journal', 10],
    ['Bulletin of the British Museum (Natural History). Entomology', 1],
    ['Deutsche Entomologische Zeitschrift', 6],
    ['Far Eastern Entomologist', 25],
    ['Journal N Y Ent Soc', 1],
    ['Journal of Natural History', 3],
    ['Linzer biologische Beiträge', 39],
    ['Papéis Avulsos de Zoologia', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 1],
    ['Smithsonian contributions to zoology', 16],
    ['ZooKeys', 14],
    ['Zootaxa', 155]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=276)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);