function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chan, Kin Onn & Anuar, Shahrul & Sankar, Ananthanarayanan', 1],
    ['Chan, Kin Onn & Muin, Mohd Abdul & Anuar, Shahrul & Andam, Joel', 1],
    ['Chandramouli, S. R.', 1],
    ['Chen, Zening & Yu, Jianping & Vogel, Gernot & Shi, Shengchao', 1],
    ['David, P. & Vogel, G. & Dubois, A.', 1],
    ['David, Patrick & Vogel, Gernot & Vijayakumar, S. P.', 9],
    ['Figueroa, Alex & Low, Martyn E. Y. & Lim, Kelvin K. P.', 9],
    ['Hakim, Jonathan & Trageser, Scott J. & Ghose, Animesh', 1],
    ['Idiiatullina, Sabira S. & Nguyen, Tan Van', 3],
    ['Idiiatullina, Sabira S. & Pawangkhanant, Parinya', 2],
    ['Mirza, Zeeshan A. & Bhosale, Harshal S. & Phansalkar, Pushkar U.', 1],
    ['Vogel, Gernot & David, Patrick & Chandramouli, S. R.', 2],
    ['Vogel, Gernot & David, Patrick & Lutz, Mario', 2],
    ['Vogel, Gernot & David, Patrick & Pauwels, Olivier S. G.', 2],
    ['Vogel, Gernot & Mallik, Ashok Kumar & Chandramouli, S. R.', 3],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=43)',
    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);