function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anais da Academia Brasileira de Ciencias', 1],
    ['Annals of the Carnegie Museum', 7],
    ['Boletim do Museu Nacional Rio de Janeiro, Zoologia', 2],
    ['Check List', 8],
    ['Denkschriften der Kaiserlichen Akademie der Wissenschaften, Wien', 2],
    ['Ichthyology & Herpetology', 5],
    ['Ind. Univ. Studies', 3],
    ['Journal of Fish Biology', 2],
    ['Neotropical Ichthyology', 15],
    ['Pap. Avulsos Dep. Zool., São Paulo', 2],
    ['Revista Brasileira de Biologia', 2],
    ['ZooKeys', 4],
    ['Zoologische Abhandlungen des Staatlichen Museums für Tierkunde, Dresden', 2],
    ['Zoosystema', 2],
    ['Zootaxa', 23],
    ['Other (8)', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=88)',
    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);