function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akyazı, Rana & Welbourn, Cal & Liburd, Oscar E.', 1],
    ['Alatawi, Fahad Jaber & Kamran, Muhammad & Mirza, Jawwad Hassan', 1],
    ['De Leon, Donald', 1],
    ['De Moraes, Gilberto J. & Britto, Erika P. J.', 152],
    ['De, Jeferson L. & Lindquist, Evert E. & De, Gilberto J.', 1],
    ['Ebrahimi, Najmeh & Noei, Javad', 1],
    ['Hurlbutt, Henry W.', 1],
    ['Joharchi, Omid & Halliday, Bruce & Tolstikov, Andrei V.', 2],
    ['Karami, Fatemeh & Hajizadeh, Jalil & Ostovan, Hadi & I, Northern', 2],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 1],
    ['Lin, Jian-Zhen', 14],
    ['Nemati, Alireza & Riahi, Elham & Khalili-Moghadam, Arsalan', 1],
    ['Wharton, G. W.', 1],
    ['Willmann, C.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=181)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);