function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Blank, Stephan M. & Kramp, Katja & Shinohara, Akihiko', 6],
    ['Blank, Stephan M. & Shinohara, Akihiko & Altenhofer, Ewald', 38],
    ['Dalman, Johan Wilhelm', 1],
    ['Gao, Taiping & Ren, Dong', 3],
    ['Gao, Taiping & Ren, Dong & Shih, Chungkun', 3],
    ['Khalaim, Andrey I. & Ruiz-Cancino, Enrique', 5],
    ['Kirby, William Forsell', 1],
    ['Liston, Andrew & Prous, Marko & Macek, Jan', 2],
    ['Liston, Andrew D. & Knight, Guy T. & Sheppard, David A.', 8],
    ['Schedl, W.', 8],
    ['Schedl, Wolfgang', 3],
    ['Shinohara, Akihiko', 4],
    ['Stephan M. Blank & Katja Kramp & David R. Smith', 13],
    ['Wang, Mei & Shih, Chungkun & Ren, Dong', 2],
    ['Zheng, Yan & Hu, Haiyan & Chen, Dong & Chen, Jun', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=103)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);