function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cohn, Ludwig', 1],
    ['Dronen, Norman O. & Blend, Charles K.', 34],
    ['Dronen, Norman O. & Gardner, Scott L. & Jiménez, F. Agustín', 2],
    ['Fischoeder, F.', 4],
    ['Johnston, S. J.', 2],
    ['Lunaschi, Lía I. & Drago, Fabiana B.', 2],
    ['Manter, Harold W.', 4],
    ['Olsson, P.', 8],
    ['Poirier, J.', 2],
    ['Pulis, Eric E. & Overstreet, Robin M.', 4],
    ['Rudolphi, Carolo Asmundo', 5],
    ['Travassos, L.', 6],
    ['Wang, H. - Y.', 2],
    ['Witenberg, G.', 3],
    ['Yamaguti, S.', 4],
    ['Other (26)', 26]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=109)',
    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);