function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['ANNALS OF THE NATAL MUSEUM', 79],
    ['African Entomology', 20],
    ['African Invertebrates', 518],
    ['African invertebrates', 48],
    ['Ann. Natal Mus.', 14],
    ['Annals of the Natal Museum', 19],
    ['Biodiversity Data Journal', 31],
    ['Dipteron', 45],
    ['F. W. Forstmann', 44],
    ['Insecta Mundi', 49],
    ['Journal of the Entomological Society of Southern Africa', 17],
    ['Linzer biologische Beiträge', 71],
    ['ZooKeys', 41],
    ['Zoosystema', 76],
    ['Zootaxa', 1150],
    ['Other (46)', 133]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=2355)',
    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);