function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta de la Academia Nacional de Ciencias Exactas', 2],
    ['Anzeiger', 1],
    ['Arquivos de Zoologia, São Paulo', 1],
    ['Arquivos de biologia e tecnologia', 1],
    ['Barranquilla, Departamento del Atlántico', 10],
    ['Biota Colombiana', 2],
    ['Bol. Soc. Venezolana Espelegía', 1],
    ['Copeia', 4],
    ['Ichthyological Exploration of Freshwaters', 9],
    ['Ichthyological exploration of freshwaters', 2],
    ['Kosmos, Rio de Janeiro [Rev. Art. Sci. Litt.]', 1],
    ['Monatsberichte der Akademie der Wissenschaft zu Berlin', 3],
    ['Revue française d\'Aquariologie Herpétologie', 4],
    ['Zoologische Jahrbucher, Abteilung für Systematik', 2],
    ['Zootaxa', 3],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=51)',
    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);