function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abhandlungen der Akademie der Wissenschaften der München Mathematik-Physikalische Klasse', 1],
    ['Acta Societatis Regiae Scientiarum Indo-Neêrlandicae', 4],
    ['Anzeiger', 1],
    ['Bulletin of the United States National Museum', 1],
    ['Copeia', 4],
    ['Cybium', 1],
    ['Denkschriften der Kaiserlichen Akademie der Wissenschaften, Wien', 1],
    ['European Journal of Taxonomy', 1],
    ['Inf. Inst. Mar Peru - Callao', 1],
    ['Privately published', 13],
    ['Proceedings of the Zoological Society of London, B', 3],
    ['Revue française d\'Aquariologie Herpétologie', 2],
    ['Sanderiano Commissum', 2],
    ['Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin', 2],
    ['Zootaxa', 18],
    ['Other (15)', 15]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=70)',
    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);