function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Biologica Universitatis Daugavpiliensis', 5],
    ['Acta Entomologica Musei Nationalis Pragae', 162],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 3],
    ['Berliner Entomologische Zeitschrift', 4],
    ['Biodiversity Data Journal', 3],
    ['European Journal of Taxonomy', 37],
    ['Insecta Mundi', 19],
    ['Japanese Journal of Systematic Entomology', 3],
    ['Japanese journal of systematic entomology', 5],
    ['Linzer biologische Beiträge', 6],
    ['Russian entomological journal', 5],
    ['Species Diversity', 2],
    ['The Coleopterists Bulletin', 31],
    ['ZooKeys', 10],
    ['Zootaxa', 340],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=642)',
    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);