function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Biologica Universitatis Daugavpiliensis', 30],
    ['Acta Entomologica Musei Nationalis Pragae', 4],
    ['Biodiversity Data Journal', 79],
    ['Candollea', 13],
    ['Check List', 3],
    ['Cryptogamie, Mycologie', 182],
    ['Insecta Mundi', 129],
    ['Journal of Species Research', 9],
    ['Linzer biologische Beiträge', 3],
    ['MycoKeys', 145],
    ['Order out of Chaos. Linnaean Plant Types and their Types', 48],
    ['Phytochemistry', 5],
    ['Phytotaxa', 246],
    ['The Coleopterists Bulletin', 5],
    ['Zootaxa', 9],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=911)',
    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);