function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Agrawal, S. C. & Sharma, S. K.', 2],
    ['Ahmad, J.', 5],
    ['Amato, J. F. R', 2],
    ['Bilqees, Fatima Mujib', 6],
    ['Bray, Rodney A.', 5],
    ['Bray, Rodney A. & Gibson, David Ian', 3],
    ['Dollfus, R. P.', 5],
    ['Machida, Masaaki & Kamegai, Shunya & Kuramochi, Toshiaki', 3],
    ['Manter, Harold W.', 13],
    ['Nicoll, W.', 3],
    ['Odhner, T.', 3],
    ['Shen, J. - w.', 4],
    ['Siddiqi, Ather H. & Cable, Raymond M.', 3],
    ['Wang, P. - q.', 4],
    ['Yamaguti, S.', 11],
    ['Other (69)', 81]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=153)',
    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);