function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aguin-Pombo, Dora & Freitas, Carlos', 1],
    ['Andrew Hamilton, K. G.', 41],
    ['Borges, Paulo A. V. & Gaspar, Clara', 2],
    ['Dmitriev, Dmitry A.', 2],
    ['Evans, J. W.', 2],
    ['Hamilton, Andrew', 11],
    ['Hamilton, K. G. Andrew Dr. & Morales, Clare F. Dr.', 9],
    ['LALLEMAND, V.', 4],
    ['Liang, A. - P. & Webb, M. D.', 13],
    ['Liang, Ai-Ping', 4],
    ['Linnaeus, Carolus', 3],
    ['Mozaffarian, Fariba', 3],
    ['Mozaffarian, Fariba & Wilson, Michael R.', 13],
    ['Shih, Hsien-Tzung & Liang, Ai-Ping & Yang, Jeng-Tze', 5],
    ['Shih, Hsien-Tzung & Yang, Jeng-Tze', 5],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=125)',
    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);