function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Hu, Yan-Qing & Yu, Yong & Huang, Zhen-Fu', 11],
    ['Hu, Yanqing & László, Gyula M. & Ronkay, Gábor & Wang, Min', 1],
    ['Joshi, Rahul & Singh, Navneet & Kuni, Nikhil', 4],
    ['Komal, J. & Shashank, P. R. & Sondhi, Sanjay & Madan, Sohail', 1],
    ['László, Gyula M. & Sterling, Mark', 1],
    ['László, Gyula M. & Vetina, Alvaro A.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=20)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);