function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['BRAZILIAN JOURNAL OF AGRICULTURE - Revista de Agricultura', 1],
    ['Biological Journal of the Linnean Society', 2],
    ['Check List', 8],
    ['Ciência Rural', 2],
    ['Ecole Pratique des Hautes Etudes, Travaux du Laboratoire. Biologie et Evolution des Insectes (principalement Hemipteroidea ou Rh', 17],
    ['Florida Entomologist', 2],
    ['Journal of Natural History', 11],
    ['Neotropical Entomology', 7],
    ['Pragas de solo no Brasil', 1],
    ['Revista Colombiana de Entomología', 5],
    ['Revista Nicaraguense de Entomologia', 4],
    ['Zoosystema', 8],
    ['Zootaxa', 74]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=142)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);