function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anzeiger', 1],
    ['Aquarien und Terrarien Zeitschrift', 2],
    ['Aquaristik Aktuell', 1],
    ['Aquarium, Bornheim', 1],
    ['Blättet für Aqüarien und Terrarienfunde', 9],
    ['Comunicaciones Zoologicas Del Museo De Historia Natural De Montevideo', 4],
    ['Comunicaciones Zoologicas del Museo de Historia Natural de Montevideo', 5],
    ['Comunicaciones zoologicas del Museo de Historia Natural de Montevideo', 5],
    ['Ichthyological Exploration of Freshwaters', 18],
    ['Revista Brasileira de Zoologia', 2],
    ['Revue française d\'Aquariologie Herpétologie', 5],
    ['Stanford Ichthyological Bulletin', 3],
    ['Tropical Fish Hobbyist', 2],
    ['Zoologischer Anzeiger', 2],
    ['Zoosystematics and Evolution', 2],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=74)',
    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);