function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bernard, F.', 1],
    ['Cedric A. Collingwood & Donat Agosti & Mostafa R. Sharaf', 1],
    ['El-Hawagry, Magdi S. & Sharaf, Mostafa R. & Al Dhafer, Hathal M.', 1],
    ['Emery, C.', 4],
    ['Forel, A.', 16],
    ['Guénard, Benoit & Mccaffrey, Katherine A. & Lucky, Andrea', 1],
    ['Heterick, Brian E. & Shattuck, Steve', 1],
    ['Jimoh, Bunmi Omowumi & Gomez, Kiko & Kemabonta, Kehinde Abike', 5],
    ['Perrichot, Vincent & Boudinot, Brendon E. & Engel, Michael S.', 2],
    ['Santschi, F.', 11],
    ['Sharaf, Mostafa R. & Dhafer, Hathal M. Al', 7],
    ['Ward, P. S.', 3],
    ['Wheeler, W. M.', 2],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 4],
    ['Yamane, Seiki & Leong, Chi-Man & Lin, Chung-Chi', 5],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=71)',
    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);