function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chan, Kin Onn & Muin, Mohd Abdul & Anuar, Shahrul & Andam, Joel', 1],
    ['David, Patrick & Dubois, Alain', 1],
    ['Deepak, V. & Narayanan, Surya & Sarkar, Vivek & Dutta, Sushil K.', 1],
    ['Figueroa, Alex & Low, Martyn E. Y. & Lim, Kelvin K. P.', 3],
    ['Hakim, Jonathan & Trageser, Scott J. & Ghose, Animesh', 1],
    ['Lam, Ngon Quang & Thu, Tran Thi Anh & Nguyen, Luan Thanh', 1],
    ['Link, Johann Heinrich Friedrich', 1],
    ['Mallik, Ashok Kumar & Srikanthan, Achyuthan N. & Pal, Saunak P.', 11],
    ['Miralles, Aurélien & David, Patrick', 2],
    ['Mohapatra, Pratyush P. & Dutta, Sushil K. & Kar, Niladri B.', 1],
    ['Mulcahy, Daniel G. & Lee, Justin L. & Miller, Aryeh H.', 1],
    ['Srikanthan, Achyuthan N. & Adhikari, Omkar Dilip', 1],
    ['Teynié, Alexandre & David, Patrick & Ohler, Annemarie', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=26)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);