function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Zhe-Jing & Zhang, Bei-Bei & Hu, Yan-Qing', 7],
    ['Clayton, John', 1],
    ['Da, Wa & Wang, Min & Hu, Yan-Qing', 2],
    ['Hu, Yanqing & Wang, Min & Han, Huilin', 7],
    ['Joshi, Rahul & Singh, Navneet & Kuni, Nikhil', 36],
    ['Komal, J. & Shashank, P. R. & Sondhi, Sanjay & Madan, Sohail', 1],
    ['László, Gyula M. & Sterling, Mark', 10],
    ['László, Gyula M. & Vetina, Alvaro A.', 6],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 1],
    ['W, M.', 1],
    ['Weidlich, Michael', 2],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 1],
    ['Õunap, Erki & Choi, Sei-Woong & Matov, Alexey & Tammaru, Toomas', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=78)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);