function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Agarwal, S. M.', 2],
    ['Arabuli, Lela & Murvanidze, Lali & Faltynkova, Anna', 7],
    ['Baer, J. G.', 3],
    ['Barker, Franklin D.', 3],
    ['Bhadauria, S. & Dandotia, M. R.', 6],
    ['Bhalerao, G. D.', 2],
    ['Braun, M.', 3],
    ['Dayal, J.', 2],
    ['Gower, William Carl', 3],
    ['Gupta, N. K.', 5],
    ['Mehra, R. K.', 5],
    ['Ogata, T.', 3],
    ['Skrjabin, K. I.', 3],
    ['Tiwari, I. P.', 3],
    ['Yamaguti, S.', 3],
    ['Other (115)', 127]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=180)',
    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);