function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abo-Shnaf, Reham & Attia, Sahar Ali', 1],
    ['Abo-Shnaf, Reham I. A. & De, Gilberto J.', 2],
    ['Ahmad-Hosseini, Mohammad & Khanjani, Mohammad & Karamian, Roya', 1],
    ['De, Gilberto J. & Zannou, Ignace D. & Ueckermann, Eddie A.', 23],
    ['El-Banhawy, E. M. & Knapp, M.', 5],
    ['Kreiter, Serge & Payet, Rose-My & Douin, Martial', 2],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 8],
    ['Ma, Min & Fan, Qing-Hai & Li, Sheng-Cai', 3],
    ['Ma, Min & Fan, Qing-Hai & Zhang, Zhi-Qiang', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=46)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);