function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Castro, Peter', 2],
    ['Galil, Bella & Takeda, Masatsune', 4],
    ['Galil, Bella S.', 2],
    ['Galil, Bella S. & Ng, Peter K. L.', 2],
    ['Karasawa, Hiroaki', 1],
    ['Kumar, Biju A. & Kumar, M. Sushil & Galil, Bella S.', 3],
    ['Lai, Joelle C. Y. & Galil, Bella', 1],
    ['Muñoz, Isabel & García-Isarch, Eva & Cuesta, Jose A.', 4],
    ['Published, First', 2],
    ['Schweitzer, Carrie E. & Feldmann, Rodney M.', 2],
    ['Spiridonov, Vassily A. & Apel, Michael', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=28)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);