function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A. Constable', 1],
    ['Anzeiger', 1],
    ['Beaufortia', 1],
    ['Biogeographical Society of Japan, Tokyo', 1],
    ['Biol. Results " Endeavour "', 3],
    ['Bulletin de la Société Zoologique de France', 1],
    ['Bulletin du Muséum National d’Histoire Naturelle, Série 2', 1],
    ['Check List', 5],
    ['E. J. Brill', 1],
    ['Journal and Proceedings of the Asiatic Society of Bengal', 2],
    ['Journal of Natural History', 1],
    ['Journal of the Academy of Natural Sciences of Philadelphia, Second Series', 1],
    ['Kungliga Svenska Vetenskapsakademiens Handlingar', 1],
    ['Rep. Inst. Fish. Biol., Taipei', 2],
    ['Zootaxa', 13],
    ['Other (11)', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=46)',
    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);