function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Palaeontologica Polonica', 4],
    ['American Museum Novitates', 2],
    ['Biodiversity Data Journal', 20],
    ['Geodiversitas', 36],
    ['Hallageriis', 1],
    ['Insecta Mundi', 3],
    ['Kungliga Svenska Vetenskapsakademiens Handlingar, Series 3', 1],
    ['Report on the Scientific Results of the Voyage of H. M. S. “ Challenger ” during the Years 1873 - 76 under the Command of Captai', 6],
    ['Revue de Paléobiologie', 14],
    ['Transactions of the geological society of London, 2', 8],
    ['Zoological Journal of the Linnean Society', 3],
    ['Zoosystema', 57],
    ['Zootaxa', 102]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=257)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);