function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 1],
    ['Bariche, Michel & Fricke, Ronald', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 3],
    ['Cocco, A.', 1],
    ['Grey, M.', 1],
    ['Günther, Albert Charles Lewis Gotthilf', 3],
    ['Hyrtl, C. J.', 1],
    ['Johnson, J. Y.', 1],
    ['Love, Milton S. & Bizzarro, Joseph J. & Cornthwaite, Maria', 1],
    ['Mukhacheva, V. A.', 1],
    ['Rass, T. S.', 1],
    ['Steindachner, F. & Kner, R.', 1],
    ['Waite, E. R.', 1],
    ['Zugmayer, E.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=18)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);