function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 1],
    ['Barnard, Keppel Harcourt', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['Chen, Y. - Y. & Mok, H. - K.', 2],
    ['Ginsburg, I.', 1],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 3],
    ['Ho, Hsuan-Ching & Smith, David G. & Mccosker, John E.', 7],
    ['Ho, Hsuan-Ching & Smith, David G. & Tighe, Kenneth A.', 12],
    ['Ho, Hsuan-Ching & Tighe, Kenneth A.', 5],
    ['Karrer, C.', 1],
    ['Norman, J. R.', 1],
    ['Robins, C. H. & Robins, C. Richard', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=36)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);