function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['African Invertebrates', 12],
    ['Arachnology', 25],
    ['Biodiversity Data Journal', 55],
    ['Bulletin of the American Museum of Natural History', 26],
    ['Evolutionary Systematics', 4],
    ['Journal of Natural History', 5],
    ['Journal of arachnology', 12],
    ['Otago Museum Trust Board', 26],
    ['Phytotaxa', 6],
    ['Species Diversity', 14],
    ['ZooKeys', 148],
    ['Zoological Journal of the Linnean Society', 84],
    ['Zoological Systematics', 11],
    ['Zoosystema', 18],
    ['Zootaxa', 262],
    ['Other (15)', 25]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=733)',
    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);