function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['African Invertebrates', 2],
    ['Beiträge Zur Entomologie = Contributions to Entomology', 20],
    ['Biodiversity Data Journal', 6],
    ['Diptera Sveciae', 1],
    ['Insects of Guam I', 3],
    ['Phytotaxa', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 1],
    ['Proceedings of the Japanese Society of Systematic Zoology', 2],
    ['Records of the Australian Museum', 22],
    ['Scientific Reports of Kyoto Prefectural University. Life and Environmental Sciences (Sci. Rep. Kyoto Pref. Univ., Life & Env. Sc', 16],
    ['ZooKeys', 3],
    ['Zoodiversity', 2],
    ['Zootaxa', 265]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=344)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);