function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 2],
    ['Biodiversity Data Journal', 11],
    ['Check List', 4],
    ['Copeia', 5],
    ['Current Herpetology', 5],
    ['Herpetozoa', 2],
    ['Japanese Journal of Herpetology', 1],
    ['Journal of Natural History', 14],
    ['PeerJ', 3],
    ['Raffles Bulletin of Zoology', 2],
    ['Records of the Zoological Survey of India', 8],
    ['Revue suisse de Zoologie', 3],
    ['ZooKeys', 43],
    ['Zoological Science', 5],
    ['Zootaxa', 139],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=250)',
    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);