function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Dorji, Phurpa & Nidup, Tshering & Klein, Wim & Dorji, Cheten', 2],
    ['Ebrahimi, Ebrahim & Carpenter, James M.', 1],
    ['Gawas, Sandesh M. & Kumar, Girish & Pannure, Arati', 6],
    ['Gusenleitner, J.', 5],
    ['Handru, Alan & Nugroho, Hari & Saito-Morooka, Fuki', 1],
    ['K. Ali, Wand & Ameen, Sirwan M. & Ahmed, Soran H.', 1],
    ['Kojima, Jun-Ichi & Saito, Fuki & Nguyen, Lien Thi Phuong', 5],
    ['Rafi, Muhammad Ather & Carpenter Muhammad Qasim, James M.', 1],
    ['Saito-Morooka, Fuki & Nguyen, Lien T. P. & Kojima, Jun-Ichi', 11],
    ['Shimizu, So & Chen, Hsuan-Pu & Lin, Kai-Ti & Chen, Ren-Jye', 1],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 1],
    ['Yildirim, E. & Gusenleitner, J.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=36)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);