function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aqua, Journal of Ichthyology and Aquatic Biology', 2],
    ['Arquivos da Estacao de Biologia Marinha da Universidade do Ceara', 6],
    ['Atas da Sociedade de biologia do Rio de Janeiro', 1],
    ['Bulletin of Marine Science', 4],
    ['Bulletin of Marine Science of the Gulf and Caribbean', 1],
    ['Bulletin of the American Museum of Natural History', 1],
    ['Bulletin of the Los Angeles County Museum of Natural History Science', 2],
    ['Bulletin of the United States National Museum', 1],
    ['Copeia', 5],
    ['Notulae Naturae', 2],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 3],
    ['Proceedings of the United States National Museum, 3', 4],
    ['Year book of the Carnegie Institution of Washington', 1],
    ['Zootaxa', 16]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=49)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);