function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abhandlungen der Akademie der Wissenschaften der München Mathematik-Physikalische Klasse', 1],
    ['Almqvist & Wiksells', 1],
    ['Atti Soc. Nat. Mat., 3', 2],
    ['Atti della R. Accademia Peloritana', 5],
    ['Bulletin of the United States Fish Commission', 7],
    ['E. J. Brill', 2],
    ['Meddelelser Kommissionen for Danmarks Fiskeri-og Havundersogelser', 2],
    ['Mem. R. Com. Talassogr. Ital.', 10],
    ['Memorie della Societa Toscana di Scienze Naturali', 12],
    ['Monographs of the Academy of Natural Sciences of Philadelphia', 2],
    ['Neotropica, La Plata', 3],
    ['Proceedings of the United States National Museum, 3', 4],
    ['Scientific Results of the M. Sars North Atlantic Deep-Sea Expedition 1910', 5],
    ['Vidensk. Medd. Naturh. Foren. Köbenhavn', 3],
    ['Zootaxa', 10],
    ['Other (23)', 23]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=92)',
    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);