function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biodiversity Data Journal', 1],
    ['Bulletin de la Société Zoologique de France', 1],
    ['Bulletin de la Société des Études Indochinoises', 1],
    ['Check List', 1],
    ['Copeia', 1],
    ['Denkschriften der Kaiserlichen Akademie der Wissenschaften, Wien', 1],
    ['Journal of Guangxi Agricultural College', 1],
    ['Journal of South Asian Natural History', 1],
    ['Journal of the Bombay Natural History Society', 1],
    ['Mitteilungen aus dem Naturhistorischen Museum in Hamburg', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 1],
    ['Quangxi People\'s Publishers', 1],
    ['Raffles Bulletin of Zoology', 2],
    ['Travaux du Museum d\'Histoire Naturelle \' Grigore Antipa\'', 1],
    ['Zootaxa', 4],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=20)',
    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);