function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 1],
    ['Anales de la Universidad de Chile, Memorias Cientificas y Literarias', 1],
    ['Australian zoologist', 5],
    ['Biodiversity Data Journal', 2],
    ['Bulletin des Sciences par la Société Philomathique de Paris', 1],
    ['Cybium', 2],
    ['European Journal of Taxonomy', 31],
    ['Geodiversitas', 4],
    ['Journal of Natural History', 2],
    ['Memoirs of the Queensland Museum', 7],
    ['Proceedings of the Linnean Society of New South Wales', 4],
    ['Veit', 3],
    ['Zoological Journal of the Linnean Society', 3],
    ['Zoosystematics and Evolution', 2],
    ['Zootaxa', 185],
    ['Other (17)', 17]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=270)',
    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);