function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Academy of Natural Sciences', 1],
    ['African Invertebrates', 28],
    ['Archiv für Molluskenkunde', 1],
    ['Bernice P. Bishop Museum Bulletin', 4],
    ['Biodiversity Data Journal', 5],
    ['Check List', 5],
    ['Contributions of the Maclurian Lyceum to the Arts and Sciences', 2],
    ['Contributions to Natural History', 3],
    ['Fossil Imprint', 2],
    ['Journal de Conchyliologie', 1],
    ['Journal of Natural History', 2],
    ['Mémoires du Muséum national d\'Histoire naturelle', 12],
    ['Proceedings of the Boston Society of Natural History', 3],
    ['Proceedings of the Zoological Society of London', 4],
    ['ZooKeys', 37],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=115)',
    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);