function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Crawford, J. C.', 1],
    ['Dodd, Alan P.', 1],
    ['Fullaway, David T.', 1],
    ['Johnson, Norman F & Burks, Roger & Austin, Andrew & Zaifu, Xu', 2],
    ['Kieffer, Jean-Jacques A.', 2],
    ['Mukerjee, M. K.', 1],
    ['Risbec, J.', 1],
    ['Taekul, Charuwat & Johnson, Norman F. & Masner, Lubomir', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=16)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);