function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Afshan, Najam-Ul-Sehar & Riaz, Maria & Liaqat, Nida', 1],
    ['Hirose, Dai & Tokiwa, Toshiyuki & Yaguchi, Takashi', 2],
    ['Jarvis, Charlie', 1],
    ['Karunarathna, Samantha C. & Priyashantha, K Hasith', 1],
    ['Mudke, Madhushri & Gururaja, K. V. & Aravind, Neelvara', 1],
    ['Qiu, Peng-Lei & Braun, Uwe & Li, Yu & Liu, Shu-Yan', 1],
    ['Wijayawardene, Nalin N. & Dai, Dong-Qin & Premarathne, Bhagya M.', 1],
    ['Yadav, Sanjay & Verma, Sanjeet Kumar & Singh, Raghvendra', 2],
    ['Zafar, Irsa & Afshan, Najam-Ul-Sehar & Khalid, Abdul Nasir', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=12)',
    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);