function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 1],
    ['Anales de la Escuela Nacional de Ciencias Biologicas', 4],
    ['Annalen des Naturhistorischen Museums in Wien, Serie B, Botanik und Zoologie', 1],
    ['Anzeiger', 1],
    ['Bulletin of the United States Fish Commission', 2],
    ['Ciencia, Mexico City', 1],
    ['Copeia', 7],
    ['Field Columbian Museum Zoological Series', 1],
    ['Miscellaneous Publications of the Museum of Zoology University of Michigan', 8],
    ['Occasional Papers of the Museum of Zoology, University of Michigan', 3],
    ['Proceedings of the United States National Museum, 3', 5],
    ['Revista de Biologia Tropical', 1],
    ['Zoologische Abhand. Staat. Mus. Tierk., Dresden', 1],
    ['Zoosystematics and Evolution', 1],
    ['Zootaxa', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=42)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);