function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albert G. Orr & RorY A. Dow', 2],
    ['Asahina, Syoziro', 7],
    ['Dijkstra, Klaas-Douwe B. & Kalkman, Vincent J. & Dow, Rory A.', 69],
    ['Dow, Rory A.', 5],
    ['Dow, Rory A. & Reels, Graham T.', 5],
    ['Dow, Rory A. & Zhang, Hao-Miao', 3],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 4],
    ['Kompier, Tom & Dow, Rory A. & Steinhoff, Philip O. M.', 9],
    ['Legrand, Jean', 4],
    ['Lieftinck, M. A.', 7],
    ['M. A. Lieftinck', 4],
    ['Phan, Quoc Toan', 5],
    ['Phan, Quoc Toan & Kompier, Tom & Karube, Haruki', 9],
    ['Phan, Quoc Toan & Ngo, Quoc Phu & Bui, Anh Phong', 3],
    ['Steinhoff, Philip O. M. & Uhl, Gabriele', 4],
    ['Other (22)', 33]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=173)',
    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);