function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 8],
    ['Biodiversity Data Journal', 28],
    ['Botanica Marina', 30],
    ['Cryptogamie, Mycologie', 103],
    ['European Journal of Taxonomy', 6],
    ['Far Eastern Entomologist', 7],
    ['Journal of Natural History', 5],
    ['MycoKeys', 275],
    ['Phytochemistry', 7],
    ['Phytotaxa', 496],
    ['Records of the Australian Museum', 9],
    ['ZooKeys', 11],
    ['Zoological Journal of the Linnean Society', 14],
    ['Zoosystema', 26],
    ['Zootaxa', 41],
    ['Other (26)', 56]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1122)',
    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);