function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arakawa, Shinji', 1],
    ['Berning, Björn & Spencer Jones, Mary E. & Vieira, Leandro M.', 6],
    ['Dick, Matthew H. & Grischenko, Andrei V. & Mawatari, Shunsuke F.', 1],
    ['Ellis, John & Solander, Daniel Carl', 4],
    ['Gerovasileiou, Vasilis & Rosso, Antonietta', 6],
    ['Grischenko, Andrei V. & Gordon, Dennis P. & Morozov, Taras B.', 1],
    ['Judith L Winston', 1],
    ['Linnaeus, Carolus', 7],
    ['Martino, Emanuela Di', 3],
    ['Ramalho, Laís V. & Rodríguez-Aporta, Raquel & Gofas, Serge', 2],
    ['Reverter-Gil, Oscar & Souto, Javier', 5],
    ['Rosso, A. & Martino, E. Di & Gerovasileiou, V.', 1],
    ['Souto, Javier & Berning, Björn & Ostrovsky, Andrew N.', 1],
    ['Vieira, Leandro M. & Gordon, Dennis P. & Souza, Facelucia B. C.', 1],
    ['Vieira, Leandro M. & Spencer, Mary E.', 1],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=42)',
    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);