function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ah-Peng, Claudine & Bardat, Jacques & Pócs, Tamás', 1],
    ['Gerovasileiou, Vasilis & Rosso, Antonietta', 10],
    ['Gray, John Edward', 1],
    ['HAYWARD, PETER J. & McKINNEY, FRANK K.', 3],
    ['Hirose, Masato', 4],
    ['Jarvis, Charlie', 1],
    ['Min, Bum Sik & Seo, Ji Eun & Grischenko, Andrei V.', 1],
    ['Moissette, Pierre & Antonarakou, Assimina & Kontakiotis, George', 1],
    ['Ramalho, Laís V. & López-Fé, Carlos M. & Mateo-Ramírez, Angel', 1],
    ['Souto, J. & Reverter-Gil, O.', 1],
    ['Souto, Javier & Berning, Björn & Ostrovsky, Andrew N.', 2],
    ['Söderström, Lars & Hagborg, Anders & Konrat, Matt Von', 1],
    ['Zágoršek, Kamil & Gordon, Dennis P.', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=31)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);