function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Lin & Shen, Chu-Ze & Tian, Di & Wu, Xue & Li, Kai', 3],
    ['He, Zhuqing & Ma, Libin', 3],
    ['Ma, Libin & Gorochov, Andrej V. & Zhang, Yalin', 3],
    ['Shi, Fu-Ming', 9],
    ['Tan, Ming Kai & Abdul Wahab, Rodzay bin Haji', 2],
    ['Tan, Ming Kai & Gorochov, Andrei V.', 3],
    ['Tan, Ming Kai & Japir, Razy & Chung, Arthur Y. C.', 3],
    ['Tan, Ming Kai & Kamaruddin, Khairul Nizam', 1],
    ['Tan, Ming Kai & Wahab, Rodzay Bin Haji Abdul', 3],
    ['Zhang, Dong-Xiao & Liu, Hao-Yu & Shi, Fu-Ming', 2],
    ['Zheng, Yanna & Ma, Libin', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=40)',
    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);