function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abdel-Dayem, Mahmoud S. & Fad, Hassan H. & El-Torkey, Ashraf M.', 5],
    ['Ali, Muhammad & Ahmed, Khalil & Ali, Shaukat & Raza, Ghulam', 5],
    ['Ansi, Amin Al & Alkhalaf, Areej A. & Fadl, Hassan', 12],
    ['Chen, Xiao-Sheng & Ren, Shun-Xiang & Wang, Xing-Min', 10],
    ['Chen, Xiaosheng & Canepari, Claudio & Wang, Xingmin', 7],
    ['Chen, Xiaosheng & Ren, Shunxiang & Wang, Xingmin', 8],
    ['Coutanceau, Jean-Pierre', 7],
    ['Hounkpati, Kwevitoukoui & McHugh, Joseph V. & Niang, Abdoul Aziz', 14],
    ['Najajrah, Mohammad H. & Swaileh, Khalid M. & Qumsiyeh, Mazin B.', 9],
    ['Nattier, Romain & Jourdan, Hervé & Mille, Christian', 4],
    ['Poorani, J. & Lalitha, N.', 6],
    ['Romanowski, Jerzy & Ceryngier, Piotr & Větrovec, Jaroslav', 4],
    ['SZAWARYN, Karol & CERYNGIER, Piotr & ROMANOWSKI, Jerzy', 6],
    ['Slipinski, Adam & Pang, Hong & Booth, R. G.', 5],
    ['Yu, Guoyue & Montgomery, Michael E. & Yao, Defu', 26],
    ['Other (28)', 47]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=175)',
    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);