function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bi, Wen-Xuan & Chen, Chang-Chin & Ohbayashi, Nobuo', 7],
    ['Bi, Wen-Xuan & Ohbayashi, Nobuo Dr.', 1],
    ['Gupta, Rajeev & Vitali, Francesco', 6],
    ['Li, Zhu & Chen, Li', 2],
    ['Lin, Mei-Ying & Lingafelter, Steven W.', 2],
    ['Lin, Mei-Ying & Perissinotto, Renzo & Clennell, Lynette', 2],
    ['Wang, Cheng-Bin & He, Li', 1],
    ['Wang, Cheng-Bin & He, Li & Huang, Jian-Bin', 2],
    ['Wang, Ping & Xie, Guanglin & Wang, Wenkai', 2],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 1],
    ['Yang, Shulin & Yang, Weicheng & Tian, Yu', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=27)',
    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);