function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 33],
    ['Bulletin -- United States National Museum', 54],
    ['Bulletin of the United States National Museum', 60],
    ['European Journal of Taxonomy', 70],
    ['Journal of Natural History', 135],
    ['Megataxa', 275],
    ['Proceedings of the United States National Museum', 34],
    ['Ray Society', 99],
    ['Reports of Science Research Voyage of H. M. S. Challenger. Zoology', 81],
    ['Species Diversity', 37],
    ['ZooKeys', 71],
    ['Zoological Journal of the Linnean Society', 155],
    ['Zoosystema', 95],
    ['Zoosystematics and Evolution', 76],
    ['Zootaxa', 1315],
    ['Other (264)', 1141]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=3731)',
    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);