function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 1],
    ['Anales de la Universidad de Chile, Memorias Cientificas y Literarias', 1],
    ['Bulletin of the United States National Museum', 1],
    ['Copeia', 2],
    ['European Journal of Taxonomy', 3],
    ['International Journal of Research Studies in Zoology', 1],
    ['Journal of Natural History', 1],
    ['New Zealand Journal of Science and Technology', 1],
    ['Proceedings of the American Philosophical Society', 1],
    ['Proceedings of the California Academy of Sciences, Series 1', 1],
    ['Proceedings of the United States National Museum, 3', 1],
    ['Revue des Travaux de l\'Institut des Peches Maritimes', 1],
    ['Salviucci', 1],
    ['Veit', 1],
    ['Zootaxa', 18],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=36)',
    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);