function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 12],
    ['Becker, V. E.', 6],
    ['Bolin, R. L.', 8],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 72],
    ['Fowler, Henry Weed', 9],
    ['Gilbert, Charles H.', 11],
    ['Goren, Menachem & Galil, Bella S.', 10],
    ['Hulley, P. A.', 9],
    ['Love, Milton S. & Bizzarro, Joseph J. & Cornthwaite, Maria', 64],
    ['Nafpaktitis, Basil G.', 8],
    ['Parr, A. E.', 11],
    ['Schwarzhans, Werner & Ohe, Fumio & Tsuchiya, Yuki', 22],
    ['Tåning, Å. V.', 29],
    ['Van Hinsbergh, Victor W. M. & Helwerda, Renate A.', 18],
    ['Wisner, R. L.', 10],
    ['Other (65)', 112]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=411)',
    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);