function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Societatis Regiae Scientiarum Indo-Neêrlandicae', 1],
    ['Annales de la Société Impériale d\'Agriculture, Histoire Naturelle de Lyon', 1],
    ['Anzeiger', 1],
    ['Aqua, Journal of Ichthyology and Aquatic Biology', 1],
    ['Bulletin of the United States Fish Commission', 1],
    ['Journal of the Ocean Science Foundation', 5],
    ['Longman’s', 1],
    ['Memoirs of the Queensland Museum', 1],
    ['Monatsberichte der Akademie der Wissenschaft zu Berlin', 2],
    ['Natuurkunde Tijdschrift voor Nederlandsche-Indië', 7],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 6],
    ['Proceedings of the Linnean Society of New South Wales', 5],
    ['Records of the Western Australian Museum', 2],
    ['Revue française d\'Aquariologie Herpétologie', 2],
    ['Verhandelingen van het Bataviaasch Genootschap van Kunsten en Wetenschappen', 6],
    ['Other (9)', 9]
  ]);
  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);