function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bernard, F.', 2],
    ['Bharti, Himender & Akbar, Shahid Ali', 6],
    ['Bolton, Barry & Fisher, Brian L.', 1],
    ['Borowiec, M. L.', 4],
    ['Borowiec, Marek L.', 5],
    ['Brown, W. L.', 8],
    ['Cedric A. Collingwood & Donat Agosti & Mostafa R. Sharaf', 3],
    ['Emery, C.', 1],
    ['Fadl, H. & Bakr, R. F. & Badawy, R. M.', 1],
    ['Forel, A.', 8],
    ['Smith, F.', 4],
    ['Ward, P. S.', 4],
    ['Weber, N. A.', 2],
    ['Wheeler, W. M.', 2],
    ['Wheeler, William Morton', 2],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=57)',
    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);