function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Askew, Richard R. & Melika, George & Pujade-Villar, Juli', 3],
    ['Askew, Richard R. & Plantard, Olivier & Gómez, José F.', 1],
    ['Burks, Roger & Mitroiu, Mircea-Dan & Fusu, Lucian', 1],
    ['Dale-Skey, Natalie & Askew, Richard R. & Noyes, John S.', 10],
    ['Else, George R. & Bolton, Barry & Broad, Gavin R.', 2],
    ['Gomez, Jose F. & Nieves, Maria Hernandez & Gayubo, Severiano F.', 10],
    ['Koutsoukos, Evangelos & Compton, Stephen G. & Noort, Simon van', 4],
    ['Kumar, Girish P. & Sheela, S. & Narendran, T. C.', 1],
    ['Lotfalizadeh, Hosseinali & Askew, Richard R.', 10],
    ['Madl, Michael', 2],
    ['Paukkunen, Juho & Berg, Alexander & Soon, Villu', 4],
    ['Rasplus, Jean-Yves & Salle, John La & Delvare, Gérard', 3],
    ['Rosa, Paolo & Greeff, Michael', 1],
    ['Walker, Francis', 2],
    ['Wei, Na-sen & Rosa, Paolo & Xu, Zai-fu', 3],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=58)',
    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);