function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beaver, R. A. & Liu, L. Y.', 6],
    ['Beaver, R. A. & Sittichaya, W. & Liu, L-Y.', 10],
    ['Beaver, Roger A. & Smith, Sarah M.', 2],
    ['Bright, Donald E.', 1],
    ['Gebhardt, Heiko & Beaver, Roger A. & Allgaier, Christoph', 3],
    ['Jordal, Bjarte H.', 5],
    ['Liao 1, Song & Lai *, Shengchang & Beaver, Roger A.', 11],
    ['Mandelshtam, Mikhail Yu. & Sergeev, Maksim E.', 3],
    ['Yu. Mandelshtam, Michail & V. Petrov, Alexander', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=42)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);