function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acena, Sergio P.', 1],
    ['Bilqees, Fatima Mujib', 4],
    ['Bravo-Hollis, Margarita', 1],
    ['Bray, Rodney A.', 2],
    ['Caballero y C., Eduardo & Bravo-Hollis, Margarita', 1],
    ['Chauhan, B. S.', 2],
    ['Fischthal, Jacob H.', 4],
    ['Liu, Sheng-fa', 2],
    ['Lühe, M.', 3],
    ['Manter, Harold W.', 8],
    ['Naidenova, N. N.', 2],
    ['Shen, J. - w.', 5],
    ['Surekha, P. & Vijaya Lakshmi, C.', 2],
    ['Wang, P. - q.', 3],
    ['Yamaguti, S.', 23],
    ['Other (22)', 22]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=85)',
    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);