function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albano, Paolo G. & Bakker, Piet A. J. & Janssen, Ronald', 1],
    ['Alexandre Scharcansky & Carlos Alberto Santos de Lucena', 6],
    ['Dall, William Healey', 1],
    ['Hansen, Thomas', 4],
    ['Harzhauser, Mathias', 2],
    ['Herbert, D. G.', 9],
    ['Herbert, David G.', 15],
    ['Isbrücker, I. J. H. & Nijssen, H.', 1],
    ['Kaim, Andrzej & Jenkins, Robert G. & Tanabe, Kazushige', 2],
    ['Laan, Richard Van Der & Eschmeyer, William N. & Fricke, Ronald', 1],
    ['Negri, Mauro Pietro & Corselli, Cesare', 1],
    ['Poppe, Guido & Tagaro, Sheila & Dekker, Henk', 12],
    ['Puyo, J.', 1],
    ['Scharcansky, Alexandre & Lucena, Carlos Alberto S.', 1],
    ['Scharcansky, Alexandre & Lucena, Carlos Alberto Santos De', 1],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=60)',
    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);