function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adlbauer, K. & Ayalew, Amare & Beck, R. & Drumont, A.', 1],
    ['Botero, Juan Pablo & Santos-Silva, Antonio', 1],
    ['Botero, Juan Pablo & Tavakilian, Gérard L. & Seidel, Matthias', 1],
    ['Chapman, Eric G. & Richards, Austin B. & Dupuis, Julian R.', 2],
    ['Georgiev, Georgi & Sakalian, Vladimir & Mirchev, Plamen', 1],
    ['Gonçalves, Elsa & Figueiredo, A. Cristina & Barroso, José G.', 1],
    ['Gupta, Rajeev & Vitali, Francesco', 8],
    ['Ilić, Nastas & Ćurčić, Srećko', 1],
    ['Karpinski, Lech & Szczepanski, Wojciech T.', 3],
    ['Karpinski, Lech & Szczepanski, Wojciech T. & lewa, Radoslaw', 1],
    ['Lazarev, Maxim A.', 1],
    ['Lin, Mei-Ying & Perissinotto, Renzo & Clennell, Lynette', 2],
    ['Ruchin, Alexaner B. & Egorov, Leonid V. & Alekseev, Sergei K.', 1],
    ['Slama, M.', 1],
    ['Webster, Reginald P. & Alderson, Chantelle A.', 1],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=27)',
    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);