function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 1],
    ['Arthropod systematics & phylogeny', 1],
    ['Biodiversity Data Journal', 307],
    ['Deutsche Entomologische Zeitschrift', 31],
    ['European Journal of Taxonomy', 14],
    ['Far Eastern Entomologist', 9],
    ['Insecta Mundi', 23],
    ['Journal of Natural History', 14],
    ['Linzer biologische Beiträge', 131],
    ['Nova Acta Científica Compostelana (Bioloxía)', 8],
    ['Raffles Bulletin of Zoology', 64],
    ['Sugapa Digital', 2],
    ['Tijdschrift voor Entomologie', 16],
    ['ZooKeys', 5],
    ['Zootaxa', 1178],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1810)',
    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);