function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 1],
    ['Blache, J. & Rossignol, M.', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 11],
    ['Fourmanoir, Pierre & Rivaton, I.', 1],
    ['Gibbs, R. H. & Amaoka, Kunio & Haruta, C.', 1],
    ['Gibbs, R. H. & Aron, W.', 1],
    ['Gibbs, R. H. & McKinney, J. F.', 2],
    ['Gilchrist, J. D. F.', 1],
    ['Gilchrist, J. D. F. & von Bonde, C.', 1],
    ['Goode, G. B. & Bean, T. H.', 1],
    ['Goodyear, R. H. & Gibbs, R. H.', 3],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 1],
    ['Parin, Nik V. & Borodulina, O. D.', 13],
    ['Regan, C. T. & Trewavas, E.', 6],
    ['Zugmayer, E.', 2],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=50)',
    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);