function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Li, Ze-Jian & Lei, Zhen & Wang, Jun-Feng & Wei, Mei-Cai', 3],
    ['Li, Zejian & Liu, Mengmeng & Wei, Meicai', 6],
    ['Liston, A. D. & Knight, G. T. & Heibo, E. & Bland, K. P.', 2],
    ['Liston, Andrew & Mutanen, Marko & Heidemaa, Mikk', 1],
    ['Liston, Andrew & Prous, Marko & Macek, Jan', 1],
    ['Liston, Andrew D.', 1],
    ['Liston, Andrew D. & Knight, Guy T. & Sheppard, David A.', 22],
    ['Liu, Mengmeng & Li, Zejian & Wei, Meicai', 9],
    ['Macek, Jan', 9],
    ['Mengmeng Liu & Zejian Li & Jian Shang & Meicai Wei', 5],
    ['Schedl, W.', 27],
    ['Schedl, Wolfgang', 28],
    ['Taeger, Andreas', 2],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 1],
    ['Zhao, Fu & Li, Zejian & Wei, Meicai', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=119)',
    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);