function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anales de la Escuela Nacional de Ciencias Biologicas', 3],
    ['Anzeiger', 4],
    ['Bol. Inst. Oceanogr. S. Paulo', 4],
    ['Bol. Ministerio Agric. Nación, Argentina', 2],
    ['Bulletin of the United States Bureau of Fisheries', 2],
    ['Bulletin of the United States National Museum', 2],
    ['Check List', 3],
    ['Ciencia, Mexico City', 3],
    ['Ichthyol. Explor. Freshwaters', 4],
    ['Ichthyological Contributions of PecesCriollos', 8],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 6],
    ['Proceedings of the United States National Museum, 3', 12],
    ['Proceedings of the Zoological Acclimatisation Society of Victoria', 3],
    ['Revista de Biologia Tropical', 3],
    ['Zootaxa', 37],
    ['Other (19)', 20]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=116)',
    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);