function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 1],
    ['Chirichigno F., Norma & McEachran, J. D.', 1],
    ['Chu, Y. - T. & Meng, Q. - W. & Hu, A. - S. & Li, S.', 1],
    ['Cooper, J. G.', 1],
    ['DE CARVALHO, MARCELO R. & MAISEY, JOHN G. & GRANDE, LANCE', 1],
    ['Dixon, J. M.', 1],
    ['Ebert, David A. & White, William T. & Ho, Hsuan-Ching', 1],
    ['Garman, S.', 1],
    ['Gordon K. Yearsley & Peter R. Last', 4],
    ['Günther, Albert Charles Lewis Gotthilf', 1],
    ['Jordan, David Starr', 2],
    ['Last, Peter R. & Gomon, Martin F.', 4],
    ['Müller, J. & Henle, F. G. J.', 2],
    ['Séret, B. & Last, Peter R.', 4],
    ['White, William T. & Ko’Ou, Alfred', 2],
    ['Other (8)', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=35)',
    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);