function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Hydrobiologica Sinica', 1],
    ['Asiatic Researches', 6],
    ['Bijdragen tot de Dierkunde', 6],
    ['Ichthyol. Explor. Freshwaters', 9],
    ['Ichthyological Exploration of Freshwaters', 15],
    ['Italian Journal of Zoology', 2],
    ['Journal of South Asian Natural History', 28],
    ['Journal of Threatened Taxa', 1],
    ['Journal of the Bombay Natural History Society', 1],
    ['Raffles Bulletin Of Zoology', 9],
    ['Raffles Bulletin of Zoology', 14],
    ['Records of the Zoological Survey of India', 1],
    ['Travaux du Museum d\'Histoire Naturelle \' Grigore Antipa\'', 1],
    ['Verlag Dr. Friedrich Pfeil', 8],
    ['Zootaxa', 29]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=131)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);