function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Basch, P. F.', 1],
    ['Baugh, S. C.', 1],
    ['Blair, D. & Islam, K. S.', 1],
    ['Edwards, D. K. & Jansch, M. E.', 1],
    ['Fain, A.', 7],
    ['Farr, M. M. & Blankemeyer, V. G.', 1],
    ['Harkema, R. & McKeever, S. & Becker, D. A.', 1],
    ['Horak, P. & Kolarova, L. & Dvorak, J.', 1],
    ['Islam, K. S.', 1],
    ['Kolarova, Libuse & Skirnisson, Karl & Ferté, Hubert', 1],
    ['Kruatrachue, M. & Bhaibulaya, M. & Chesdapan, C.', 1],
    ['Liu, Zhong & Chen, Minsheng & Jin, Gnanfan & Tan, Yuefa', 1],
    ['Muller, Volker & Kimmig, Peter', 1],
    ['Neuhaus, W.', 1],
    ['Shakarbaev, U. A. & Akramova, F. D. & Azimov, D. A.', 2],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=27)',
    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);