function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bahirai, Fereshteh & Jafari, Shahriar & Lotfollahi, Parisa', 7],
    ['Huang, Kun-Wei', 17],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 15],
    ['Lamb, K. P.', 6],
    ['Lotfollahi, Parisa & Irani-Nejad, Karim Haddad', 6],
    ['Manson, David Charles MacKenzie', 16],
    ['Monfreda, Rosita & Lillo, Enrico De', 5],
    ['Navia, Denise & Gondim, Manoel G. C. & De, Gilberto J.', 4],
    ['Pye, Daniel R. L.', 4],
    ['SitunguK, Sivu & ElhalawanyK, Ashraf Said', 6],
    ['Song, Zi-Wei & Xue, Xiao-Feng & Hong, Xiao-Yue', 9],
    ['XUE, XIAO-FENG & WANG, ZHEN & SONG, ZI-WEI & HONG, XIAO-YUE', 29],
    ['Xue, Xiao-Feng & Han, Xiao & Song, Zi-Wei & Hong, Xiao-Yue', 6],
    ['Xue, Xiao-Feng & Sadeghi, Hussein & Hong, Xiao-Yue', 6],
    ['Xue, Xiao-Feng & Zhang, Zhi-Qiang', 69],
    ['Other (41)', 67]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=272)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);