function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bruce, Niel L. & Buxton, Chad', 1],
    ['Dole-Olivier, Marie-José & Galassi, Diana M. P. & Fiers, Frank', 8],
    ['García-Vázquez, Leonardo & Campos, Ernesto', 1],
    ['García-Vázquez, Leonardo & Pedraza-Lara, Carlos', 6],
    ['García-Vázquez, Leonardo & Rodríguez-Almaraz, Gabino', 1],
    ['Lewis, Julian J. & Bowman, Thomas E. & Feller, Daniel J.', 9],
    ['López, Eduardo', 3],
    ['Malek-Hosseini 1,2,3, Mohammad Javad & Jugovic 4, Jure', 1],
    ['Mayén-Estrada, Rosaura & Clamp, John C.', 3],
    ['Sidorov, Dmitry', 3],
    ['Simon, Thomas P. & Morris, Charles C. & Robb, Joseph R.', 2],
    ['Strøm, H.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=39)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);