function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Batley, Michael', 71],
    ['Dathe, Holger H.', 105],
    ['Dathe, Holger H. & Proshchalykin, Maxim Yu.', 40],
    ['Else, George R. & Bolton, Barry & Broad, Gavin R.', 42],
    ['Ferrari, Rafael R.', 52],
    ['Kuhlmann, Michael', 66],
    ['Kuhlmann, Michael & Proshchalykin, Maxim Yu.', 240],
    ['Lhomme, Patrick', 77],
    ['Maynard, Glynn Vivian', 97],
    ['Niu, Ze-Qing & Zhu, Chao-Dong & Kuhlmann, Michael', 77],
    ['Portman, Zachary M. & Gardner, Joel & Lane, Ian G.', 39],
    ['Proshchalykin, Maxim Yu. & Dathe, Holger H.', 63],
    ['Proshchalykin, Maxim Yu. & Kuhlmann, Michael', 60],
    ['Zabel, Tina & Kuhlmann, Michael', 39],
    ['Özbek, Hikmet & Dathe, Holger H.', 85],
    ['Other (103)', 839]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1992)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);