function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amphibian & Reptile Conservation', 5],
    ['Biodiversity Data Journal', 8],
    ['Fossil Record', 4],
    ['Geodiversitas', 24],
    ['Herpetozoa', 8],
    ['Journal of Natural History', 4],
    ['Kungliga Svenska Vetenskapsakademiens Handlingar', 2],
    ['Laurentius Salvius', 44],
    ['Panckoucke', 3],
    ['Proceedings of the California Academy of Sciences', 5],
    ['Zoologica Scripta', 9],
    ['Zoological Journal of the Linnean Society', 9],
    ['Zoosystema', 15],
    ['Zoosystematics and Evolution', 3],
    ['Zootaxa', 196],
    ['Other (11)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=351)',
    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);